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!"#$%&# '()!*"$"+, !"!#$%& '(#)#( *+,- +.!$#,& */' .0+"# (12#$)+3 !*'%-4 *+,- +.!$#,&), ',' */' .5 +.# .5*+,)&#(+6+ (+"1,&. 7'%$#(! 8# +*!%)+%$' %$/+'$%& )! *+%,#"+.!$#,-)+( *+"9,42#)'' 9 %#/.#/1 SQL Server, ! !$#( 9 %!(+3 8! # "!))50. :! +3 8!))50 *+ 1(+,2!)'4 *#/.+)!2!,-)+ 1%$!)!.,'.!#$%& 8! ! "!))50 master. ;/' !1$#)$'<'9!='' )! 1/+.)# %#/.#/! */+.#/&#$%& 12#$)!& !*'%- (login) ' .5*+,)&#$%& +$+8/!>#)'# "!))+3 12#$)+3 !*'%' . '(& *+,- +.!$#,& 8! 5 "!))50 (user). ?%# !/#6'%$/'/+.!))5# 12#$)5# !*'%' (login) +$+8/!>!4$%& . %#9='' Security +9)! Object Explorer %/#"5 Micrisoft SQL Server Management Studio, ! *+,- +.!$#,' 9!>"+3 8! 5 "!))50 +$+8/!>!4$%& . %#9='' Security %++$.#$%$.14@#3 8! 5 "!))50. A! %,#"14@#( /'%1)9# */#"%$!.,#)+ %++$.#$%$.'# (#>"1 12#$)+3 !*'%-4 user1 ' '(#)#( *+,- +.!$#,& 8! 5 "!))50 MyDB name_user1.

-./0.1!#%. 0.&)0$2$*$""(3 )0+*!4$"+5 1./ 2.""(3

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B+>)+ 6+.+/'$-, 2$+ */' *+"9,42#)'# 9 8! # "!))50 */+'%0+"'$ *#/.'2)!& ()! 1/+.)# %#/.#/!) ' .$+/'2)!& ()! 1/+.)# 8! 5 "!))50) '"#)$'<'9!='& *+,- +.!$#,&.

-./0.1!#%. 0.&)0$2$*$""(3 )0+*!4$"+5 1./ 2.""(3

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SQL Server 2005 *+ .+,&#$ &.)+ 19! !$- 9+)$#9%$ .5*+,)#)'& $!9'0 +*/#"#,&#(50 *+,- +.!$#,#( (+"1,#3 9!9: <1)9='', */+=#"1/5, !*/+%5 ' $/'66#/5. C (#)#)'# 9+)$#9%$! .5*+,)#)'& ')'=''/1#$%& +*#/!$+/+( EXECUTE, 9+$+/53 '(##$ %,#"14@## <+/(!,-)+# +*'%!)'#: !"#$%%,&'("%)*+ ,'-$+.!'* % DML /'%00+'*: {EXEC | EXECUTE} AS { CALLER | SELF | OWNER | ' !"_#$%&'$()*+%"'} DDL /'%00+'* !'-1"2 3(4* .(""*&: { EXEC | EXECUTE } AS { CALLER | SELF | ' !"_#$%&'$()*+%"'} DDL /'%00+'* !'-1"2 5+'1+'(: { EXEC | EXECUTE } AS { CALLER | SELF | ',-+*.)"_')# /&' } 6(,'-5*: { EXEC | EXECUTE } AS { SELF | OWNER | ' !"_#$%&'$()*+%"'} D,42#.+# %,+.+ CALLER +*/#"#,&#$, 2$+ (+"1,- .5*+,)&#$%& . 9+)$#9%$# *+,- +.!$#,&, ')'=''/14@#6+ .5*+,)#)'#. E,& F$+6+ 1 "!))+6+ *+,- +.!$#,& "+">)5 85$- %++$.#$%$.14@'# */'.#,#6'& )# $+,-9+ ",& !*1%9! (+"1,&, )+ ' )! "+%$1* 9+ .%#( +8G#9$!( 8! 5 "!))50, '%*+,- 1#(5( . F$+( (+"1,#. H)!2#)'# CALLER '%*+,- 1#$%& 9!9 )!2#)'# *+ 1(+,2!)'4 ",& .%#0 (+"1,#3 9/+(# !*/+%+.. I9! !$- 9+)9/#$)53 9+)$#9%$ .5*+,)#)'& (+>)+ )! %$!"'' %+ "!)'& */+=#"1/5. A!*/'(#/: USE MyDB; GO

-./0.1!#%. 0.&)0$2$*$""(3 )0+*!4$"+5 1./ 2.""(3

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CREATE PROCEDURE dbo.test1 WITH EXECUTE AS 'user1' AS SELECT user_name(); -- !"#$%&%'( )*+ -- (',-&'.! /!01"!#%('0+ GO E!,## */'(#)#)'# 1%$!)+.,#))+6+ 9+)$#9%$! .5*+,)#)'& 19! 5.!#$%& 9,42#.5( %,+.+( CALLER. A!*/'(#/: CREATE PROCEDURE dbo.test1 WITH EXECUTE AS 'name_user1' AS SELECT user_name(); -- 2!3(',4( #5/!03'3)+ -4(%3!#0'3 -- 3% name_user1 EXECUTE AS CALLER; SELECT user_name();(); -- 2!3(',4( #5/!03'3)+ -- -4(%3!#0'3 3% name_user2, -- #5/!03)#6'.! #5"!# *!7-0+ REVERT; SELECT user_name(); -- 2!3(',4( #5/!03'3)+ -4(%3!#0'3 -- 3% name_user1 GO J*#/!$+/ REVERT .5*+,)&#$ *#/#9,42#)'# 9+)$#9%$! .5*+,)#)'& )! )!2#)'# 19! !))+# . *+%,#")#( .5*+,)#))+( +*#/!$+/# EXECUTE AS. E,& 19! !)'& 9+)$#9%$! .5*+,)#)'& %#!)%! '%*+,- 1#$%& +*#/!$+/ EXECUTE AS, 9+$+/53 '(##$ %,#"14@## <+/(!,-)+# +*'%!)'#: { EXEC | EXECUTE ] AS <4/'8)9),%8)+_,!3(',4(%> [;] .7' < 4/'8)9),%8)+_,!3(',4(% >::=

-./0.1!#%. 0.&)0$2$*$""(3 )0+*!4$"+5 1./ 2.""(3

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{ LOGIN | USER } = 'name' [ WITH { NO REVERT | COOKIE INTO @varbinary_variable } ] | CALLER

1&2#*'+! (*3/+4E,& %+ "!)'& $!8,'=5 '%*+,- 1#$%& +*#/!$+/ CREATE TABLE, '(#4@'3 %,#"14@## <+/(!,-)+# +*'%!)'#: CREATE TABLE [ !"_0)'1_2)..13 . [/3+!)] . |/3+!) .] !"_*)0% 41 ( { | } [ ] [ ,...n ] ) [ ON { partition_scheme_name ( partition_column_name ) | filegroup | "default" } ] [ { TEXTIMAGE_ON { filegroup | "default" } ] [ ; ] <-,'+.+7+"%+_5/-73$(> ::= !"_/*$%04) <()/_7%335<> [ COLLATE 2+.* 5 6)*$7_,##$7"2$- (). " ] [ NULL | NOT NULL ] [ [ CONSTRAINT 2+.* 5 6)*$7_$87). -+. "_4+%$/*.$/* DEFAULT (17)9+. +_$87). -+. "_4+%$/*.$/* ] | [ IDENTITY [ ( .)-_'.)-+. + , .67+!+.* ) ] [ NOT FOR REPLICATION ]

]

-./0.1!#%. 0.&)0$2$*$""(3 )0+*!4$"+5 1./ 2.""(3

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] [ ROWGUIDCOL ] [ [ ...n ] ] ::= [ type_schema_name . ] type_name [ ( precision [ , scale ] | max | [ { CONTENT | DOCUMENT } ] xml_schema_collection ) ] <-0'("%8+"%+_$+7-5/"-5/%_5/-73$(> ::= [ CONSTRAINT constraint_name ] { { PRIMARY KEY | UNIQUE } [ CLUSTERED | NONCLUSTERED ] [ WITH FILLFACTOR = fillfactor | WITH ( < index_option > [ , ...n ] ) ] [ ON { partition_scheme_name ( partition_column_name ) | filegroup | "default" } ] | [ FOREIGN KEY ] REFERENCES [ /3+!) . ] referenced_table_name [ ( ref_column ) ] [ ON DELETE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ] [ ON UPDATE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ] [ NOT FOR REPLICATION ] | CHECK [ NOT FOR REPLICATION ] ( %$8_(17)9+. + ) }

-./0.1!#%. 0.&)0$2$*$""(3 )0+*!4$"+5 1./ 2.""(3

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<-,'+.+7+"%+_1*8%57%)%0-_5/-73$(> ::= !"_/*$%04) AS (1- /%"+!$+_(17)9+. + [ PERSISTED [ NOT NULL ] ] [ [ CONSTRAINT constraint_name ] { PRIMARY KEY | UNIQUE } [ CLUSTERED | NONCLUSTERED ] [ WITH FILLFACTOR = fillfactor | WITH ( [ , ...n ] ) ] | [ FOREIGN KEY ] REFERENCES referenced_table_name [ ( ref_column ) ] [ ON DELETE { NO ACTION | CASCADE } ] [ ON UPDATE { NO ACTION } ] [ NOT FOR REPLICATION ] | CHECK [ NOT FOR REPLICATION ] ( logical_expression ) [ ON { partition_scheme_name ( partition_column_name ) | filegroup | "default" } ] ] < -0'("%8+"%+_$+7-5/"-5/% /(37%$* > ::= [ CONSTRAINT constraint_name ] { { PRIMARY KEY | UNIQUE } [ CLUSTERED | NONCLUSTERED ] (column [ ASC | DESC ] [ ,...n ] ) [ WITH FILLFACTOR = fillfactor |WITH ( [ , ...n ] ) ] [ ON { partition_scheme_name (partition_column_name)

-./0.1!#%. 0.&)0$2$*$""(3 )0+*!4$"+5 1./ 2.""(3

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| filegroup | "default" } ] | FOREIGN KEY ( column [ ,...n ] ) REFERENCES referenced_table_name [ ( ref_column [ ,...n ] ) ] [ ON DELETE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ] [ ON UPDATE { NO ACTION | CASCADE | SET NULL | SET DEFAULT } ] [ NOT FOR REPLICATION ] | CHECK [ NOT FOR REPLICATION ] (%$8_(17)9+. + ) } <-,$%%_%".+#5(> ::= { PAD_INDEX = { ON | OFF } | FILLFACTOR = fillfactor | IGNORE_DUP_KEY = { ON | OFF } | STATISTICS_NORECOMPUTE = { ON | OFF } | ALLOW_ROW_LOCKS = { ON | OFF} | ALLOW_PAGE_LOCKS ={ ON | OFF} } ;/' %+ "!)'' $!8,'=5 (+>#$ 85$- 19! !)! 8! ! "!))50 ' %0#(!, . 9+$+/14 81"1$ "+8!.,#)! $!8,'=!. J*'%!)'# %$+,8=+. 19! 5.!#$%& . 9/16,50 %9+89!0 2#/# !*&$14. 7$+,8=5 (+61$ 85$- ".10 .'"+.: %$+,8=5 !"!))+6+ $'*! ' .52'%,&#(5# %$+,8=5. ;/' %+ "!)'' $!8,'=5 (+>)+ +*/#"#,'$- ## /! 8'#)'#. J6/!)'2#)'& =#,+%$)+%$' ",& %$+,8=! (+61$ 19! 5.!$-%& %,#"14@'('
-./0.1!#%. 0.&)0$2$*$""(3 )0+*!4$"+5 1./ 2.""(3

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NOT NULL – . ,48+3 "+8!.,&#(+3 ',' ' (#)&#(+3 %$/+9# %$+,8#= .%#6"! "+,>#) '(#$- )!2#)'# +$,'2)+# +$ NULL; UNIQUE – .%# )!2#)'& %$+,8=! "+,>)5 85$- 1)'9!,-)5; PRIMARY KEY – 1%$!)!.,'.!#$ +"') %$+,8#= 9!9 *#/.'2)53 9,42 ' +")+./#(#))+ *+"/! 1(#.!#$ 2$+ .%# )!2#)'& %$+,8=! 81"1$ 1)'9!,-)5; CLUSTERED – +*/#"#,&#$ %+ "!)'# 9,!%$#/)+6+ ')"#9%!; NONCLUSTERED– +*/#"#,&#$ %+ "!)'# )#9,!%$#/)+6+ ')"#9%!; CHECK (condition) – 19! 5.!#(+# . %9+89!0 1%,+.'# '%*+,- 1#$%& ",& %/!.)#)'& )!2#)'# %$+,8=! ' .+ ./!@!#$ TRUE, FALSE ',' UNKNOWN. K%,' */' *+*5$9# .5*+,)#)'& SQL-+*#/!$+/! .+ ./!@!#(+# )!2#)'# /!.)+ FALSE, $+ +*#/!$+/ .5*+,)#) )# 81"#$; REFERENCES table (fields_list) – +6/!)'2#)'# $/#81#$ %+.*!"#)'& )!2#)'3 %$+,8=+. "!))+3 $!8,'=5 % 19! !))5(' %$+,8=!(' /+"'$#,-%9+3 $!8,'=5. J6/!)'2#)'& =#,+%$)+%$' ",& $!8,'=5 (+61$ 19! 5.!$-%& %,#"14@'(' )5 85$- 1)'9!,-)5; PRIMARY KEY(column) – 1%$!)!.,'.!#$ +"') %$+,8#= 9!9 *#/.'2)53 9,42 ' +")+./#(#))+ *+"/! 1(#.!#$ 2$+ .%# )!2#)'& %$+,8=! 81"1$ 1)'9!,-)5; CLUSTERED (column) – +*/#"#,&#$ %+ "!)'# 9,!%$#/)+6+ ')"#9%!; NONCLUSTERED (column) – +*/#"#,&#$ %+ "!)'# )#9,!%$#/)+6+ ')"#9%!; CHECK (condition) – 19! 5.!#(+# . %9+89!0 1%,+.'# '%*+,- 1#$%& ",& %/!.)#)'& )!2#)'# %$+,8=! ' .+ ./!@!#$ TRUE, FALSE ',' UNKNOWN. K%,' */' *+*5$9# .5*+,)#)'& SQL-+*#/!$+/! .+ ./!@!#(+# )!2#)'# /!.)+ FALSE, $+ +*#/!$+/ .5*+,)#) )# 81"#$;

-./0.1!#%. 0.&)0$2$*$""(3 )0+*!4$"+5 1./ 2.""(3

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FOREIN KEY (fields_list) – !" "#$%&'()&') *" +&),&)-. /01(. 203 4!"056"+ #%$%&!'$.)!, (!" +4) 7&%()&'3, ./%7%&&8) +" +&),&)/01() 5.2.! 4""!+)!4!+"+%!9 7&%()&'3- $"2'!)094/"#" /01(%, "5)4*)('+%3 4480"(&.1 6)0"4!&"4!9; REFERENCES table (fields_list) – "#$%&'()&') !$)5.)! 4"+*%2)&'3 7&%()&': 4!"056"+ 2%&&": !%50'68 4 ./%7%&&8-' 4!"056%-' $"2'!)094/": !%50'68. ;%50'68 -"#.! 58!9 *"4!"3&&8-' ' +$)-)&&8-'. < 4+"1 "()$)29 +$)-)&&8) !%50'68 2)03!43 &% 0"/%09&8) - 2"4!.*&8) !"09/" + $%-/%= 2%&&"#" 4)%&4%, ' #0"5%09&8) – 2"4!.*&8) +" +4)= 4)%&4%=. >-3 0"/%09&": !%50'68 &%('&%)!43 4 *$)?'/4% #, % '-3 #0"+%09&": – 4 *$)?'/4% ##.

!"#$"!%&'$( )&*"!+!% >7+0)()&') '&?"$-%6'' '7 5%78 2%&&8= +8*"0&3)!43 *"4$)24!+""*)$%!"$% 7%*$"4% SELECT, /"!"$8: '-))! 40)2.1@)) ?"$-%09&") "*'4%&'): SELECT [WITH [,...n]] < !"#$%&'% (#)"*+#> [ ORDER BY { !"#$%&'%_()* +,-"*(-.' #&'* | &-/%"_01-)23# [ ASC | DESC ] } [ ,...n ] ] [ COMPUTE { { AVG | COUNT | MAX | MIN | SUM } ( !"#$%&'% ) } [ ,...n ] [ BY !"#$%&'% [ ,...n ] ] ] [ FOR { BROWSE | <XML> } ] [ OPTION ( [ ,...n ] ) ]

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./

26

< !"#$%&'%_(#)"*+#> ::= { <+)%,'-'.#,'/_(#)"*+#> | ( < !"#$%&'%_(#)"*+#> )} [ { UNION [ ALL ] | EXCEPT | INTERSECT } <+)%,'-'.#,'/_(#)"*+#> | ( < !"#$%&'%_(#)"*+#> ) [...n ] ] <+)%,'-'.#,'/_(#)"*+#> ::= SELECT [ ALL | DISTINCT ] [TOP !"#$%&'% [PERCENT] [ WITH TIES ] ] < +)'+*._ !0*"# > [ INTO &- #*_1#2)'3# ] [ FROM { <'+1*2&#/_3#04',#> } [ ,...n ] ] [ WHERE <5+4* '%> ] [ GROUP BY [ ALL ] !"#$%&'%_'0,-)45+%/-%_()*_6"+,,! [ ,...n ] [ WITH { CUBE | ROLLUP } ] ] [ HAVING < 5+4* '% > ] <XML>::= XML {{ RAW [ ( 'ElementName' ) ] | AUTO } [ [, BINARY BASE64 ][, TYPE ][, ROOT [('RootName')]] [, { XMLDATA | XMLSCHEMA [('TargetNameSpaceURI')]}] [, ELEMENTS [ XSINIL | ABSENT ] ] | EXPLICIT [ [, BINARY BASE64 ][, TYPE ][, ROOT [('RootName')]] [ , XMLDATA ]

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./

27

] | PATH [ ( 'ElementName' ) ] [ [, BINARY BASE64 ][, TYPE ][, ROOT [('RootName')]] [ , ELEMENTS [ XSINIL | ABSENT ] ] ] }

A40' "*)$%!"$ SELECT +8*"0&3)!43 '7 *$'0"B)&'3 &% 2$.#"- 378/) *$"#$%--'$"+%&'3, !" ?"$-'$.)!43 $)7.09!'$.1@': &%5"$, $%7-)@%)-8: + *%-3!' *$'0"B)&'3 '0' 4)$+)$% CD, % 7%!)- *$'0"B)&') '7+0)/%)! 2%&&8) '7 $)7.09!'$.1@)#" &%5"$% + 4+"' *)$)-)&&8). E"40) ?$%78 SELECT ./%78+%)!43 4*'4"/ +8$%B)&':, "*$)2)031@': 7&%()&'3 ?"$-'$.)-8) 7%*$"4"-. < 4%-"- *$"4!"- 40.(%) 4*'4"/ +8$%B)&': 3+03)!43 4*'4/"- *"0): !%50'68. A40' !$)5.)!43 '7+0)()&') 7&%()&': +4)= *"0):, !" +-)4!" 4*'4/% *"0): -"B&" ./%7%!9 4'-+"0 *. F%*$'-)$: SELECT * FROM tbl1; . >-3 *"03 -"B)! 58!9 /+%0'?'6'$"+%&" '-)&)- !%50'68, ./%78+%)-8()$)7 !"(/.. F%*$'-)$: SELECT tbl1.f1, tbl2.f1 FROM tbl1, tbl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

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./

28

BETWEEN – +"7+$%@%)! TRUE, )40' 7&%()&') &%="2'!43 + ./%7%&&"- 2'%*%7"&). F%*$'-)$: x BETWEEN y AND z /+'+%0)&!&" +8$%B)&'1 (x<=z) AND (x>=y); IN - 4"+*%2%)! 4 "2&'- '7 *)$)('40)&&8= + 4*'4/). F%*$'-)$: x IN (a,b,c); LIKE - +"7+$%@%)! TRUE 203 7&%()&':, 4"+*%2%1@'= 4 ./%7%&&": *"24!$"/": 4'-+"0"+. F%*$'-)$: x LIKE 'abc'; IS NULL - +"7+$%@%)! TRUE, )40' 7&%()&') $%+&" NULL. I!"! *$)2'/%! +"7+$%@%)! !"09/" 7&%()&') TRUE '0' FALSE F%*$'-)$: x IS NULL; EXISTS – !" *$)2'/%! 4.@)4!+"+%&'3, +"7+$%@%1@': 7&%()&') TRUE, )40' ./%7%&&8: + &)- *"27%*$"4 4"2)$B'! ="!3 58 "2&. 4!$"/.. F%*$'-)$: SELECT * FROM tbl1 t_out WHERE EXISTS (SELECT * FROM tbl1 t_in WHERE t_in.f1= t_out.f1); G$%7% GROUP BY "*)$%!"$% SELECT *$'-)&3)!43 203 "*$)2)0)&'3 #$.**8 4!$"/, &%2 /"!"$8-' +8*"0&31!43 ?.&/6'' %#$)#'$"+%&'3. A40' + "*)$%!"$) SELECT ./%7%&% ?$%7% GROUP BY, !" +4) '-)&% 4!"056"+, ./%78+%)-8) + 4*'4/) 203 "*$)2)0)&'3 4"72%+%)-"#" $)7.09!'$.1@)#" &%5"$%, 2"0B&8 58!9 ./%7%&8 4 ?.&/6'3-' %#$)#'$"+%&'3. ;%/ /%/ 203 /%B2": #$.**8 4!$"/ + $)7.09!'$.1@': &%5"$ 5.2)! +/01()&% !"09/" "2&% 4!$"/%, 4"2)$B%@%3 7&%()&'3 *"0.()&&8) ?.&/6'3-' %#$)#'$"+%&'3 &%2 2%&&": #$.**": 4!$"/. H ?.&/6'3- %#$)#'$"+%&'3 "!&"43!43 40)2.1@') ?.&/6'' 378/% TransactSQL: COUNT ( { [ [ ALL | DISTINCT ] +8$%B)&') ] | * } ) – *"24()! /"0'()4!+% 7&%()&': 4!"056"+ (ALL- +4)= 203 7%2%&&"#" +8$%B)&'3, DIST – .('!8+%3 !"09/" .&'/%09&8) &) $%+&8) NULL, * - *"24()! +4)= 4!$"/);

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./

29

AVG – "*$)2)0)&') 4$)2&)#" 7&%()&'3; SUM – *"24()! 4.--8 +4)= 7&%()&'' #$.**8. A40' *$' !"*"0.(%)-") 7&%()&') +8="2'! 7% *$)2)08 4.--'$.)-"#" !'*% 2%&&8=, !" '&'6''$.)!43 ",'5/% +8*"0&)&'3 SQL-"*)$%!"$%; MAX - "*$)2)0)&') -%/4'-%09&"#" 7&%()&'3 '7 #$.**8; MIN - "*$)2)0)&') -'&'-%09&"#" 7&%()&'3 '7 #$.**8. G$%7% HAVING "*)$%!"$% SELECT "*$)2)03)! *$)2'/%! %&%0"#'(&" ?$%7) WHERE, &" *$'-)&3)-8: / 4!$"/%-, *"0.()&&8- + $)7.09!%!) +8*"0&)&'3 ?.&/6': %#$)#'$"+%&'3. J0)2.1@': *$'-)$ '0014!$'$.)! *$'-)&)&') #$.**. J!"05)6 id1 '-))! +4)#" !$' $%70'(&8= 7&%()&'3: 11, 22 ' 33. D03 /%B2": '7 !$)= #$.** &%="2'!43 -'&'-%09&") ' -%/4'-%09&") 7&%()&') 4!"056% f1. SELECT id1, MIN(f1), MAX(f1) FROM tbl1 GROUP BY id1; K)7.09!%!"- +8*"0&)&'3 !"#" SQL-"*)$%!"$% 5.2)! ?"$-'$"+%&') 40)2.1@'= 4!$"/: id1 MIN(f1) MAX(f1) –––––––––– –––––––––– –––––––––– 11 125 600 22 200 2300 33 100 450 E$' +85"$) 4 *$'-)&)&')- #$.** ' 4 2"*"0&'!)09&8- "#$%&'()&')- &% 7&%()&') + 4!"056) MIN(f1). SELECT dno, MIN(f1), MAX(f1) FROM tbl1 GROUP BY id1 HAVING MAX(f1) < 1000; < $)7.09!%!) +8*"0&)&'3 !"#" SQL-"*)$%!"$% 5.2.! +"7+$%@)&8 !"09/" 2+) 4!$"/': *)$+%3 ' *"40)2&33: id1 MIN(f1) MAX(f1)

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./

30

–––––––––– –––––––––– –––––––––– 11 125 600 33 100 450 G$%7% FOR XML "*)$%!"$% SELECT"*$)2)03)!, (!" $)7.09!%! 7%*$"4% 5.2)! +"7+$%@)& + +'2) XML-2"/.-)&!%.

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31

[ ,...n ] ) ]

} < !"#$%&"'("_)*+,$-(> ::= { <$ .!#%*&_)*+,$-*> <)$/_ !"#$%"%$&> <$ .!#%*&_)*+,$-*> ON <0 ,!1$"> |<$ .!#%*&_)*+,$-*> CROSS JOIN <$ .!#%*&_)*+,$-*> | !)* +_"#,(-. +_$ %!"& { CROSS | OUTER } APPLY /0 * +_"#,(-. +_$ %!"& | [ ( ] < !"#$%&"'("_)*+,$-(> [ ) ] } <)$._ !"#$%"%$&> ::= [ { INNER | { { LEFT | RIGHT | FULL } [ OUTER ] } } [ <join_hint> ] ] JOIN ::= "#,(-. +_$ %!"& PIVOT table_alias ::= ( 12.3&"+_ 40)4"0(* ."+ ( value_column ) FOR pivot_column IN ( ) ) ::=

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UNPIVOT

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::= (value_column FOR pivot_column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– 3/:-%*//** !(*+#/*/#*. C-( !(*+#/*/#* #!)(";':*-!, )( :8("A&/#5. 6%# 3/:-%*//*8 !(*+#/*/## 3 %*':";-#%:5<#0 /&.(% 37"5A&5-!, -(";7( -* !-%(7#, '/&A*/#, 7(-(%2? )( !(*+#/,*828 ((+/(#8*//28) !-(".1&8 !(3)&+&5-; LEFT [OUTER] JOIN – "*3(* 3/*@/** !(*+#/*/#*. 6%# 3/*@/*8 "*3(8 !(*+#/*/## 3 %*':";-#%:5<#0 /&.(% .:+:- 32.%&/2 3!* !-%(7# #' "*3(0 -&."#12 (:7&'23&*8(0 )*%3(0). 6%# !(3)&+*/## '/&A*/#0 )( !(*+#/,*828 ((+/(#8*//28) !-(".1&8 '/&A*/#, 3-(%(0 -&."#12 '&/(!,-!, 3 %*':";-#%:5<#0 /&.(% 3 !((-3*-!-3:5<#* !-%(7#. 6%# (-!:-!-3## !(3)&+*/#0 3 7&A*!-3* '/&A*/#0 3-(%(0 -&."#12 )%(!-&3",*-!, '/&A*/#* NULL;

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RIGHT [OUTER] JOIN –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!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./

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)*+,"-.,.-/ H'27 Transact-SQL )%*+(!-&3",*- +3& !)(!(.& (.>*+#/*/#, -&."#1: :7&'23&, !(*+#/,*82* -&."#12 (37"5A&, )(+'&)%(!2) 3( $%&'* FROM ()*%&-(%& SLECT. B 4-(8 !":A&* !/&A&"& 32)("/,*-!, !(*+#/*/#* -&."#1, & :9* )(-(8 7 )(":A*//(8: 8/(9*!-3: )%#8*/,5-!, :!"(3#,, :7&'&//2* $%&'(0 WHERE, &E%*E#%(3&/#*, ()%*+*",*8(* $%&'(0 GROUP BY, :)(%,+(A#3&/#* +&//2? # -.).;

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()%*+*",, (.>*+#/*/#* %*':";-#%:5<#? /&.(%(3, )(":A*//2? )%# (.%&.(-7* ()*%&-(%& SELECT. B 4-(8 !":A&* +3& ()*%&-(%& SELECT !(*+#/,5-!, $%&'(0 UNION, INTERSECT #"# EXCEPT. I", (.>*+#/*/#, %*':";-&-(3 /*!7(";7#? '&)%(!(3 3 (+#/ %*':";-#%:5<#0 /&.(% 3 ()*%&-(%* SELECT #!)(";':*-!, $%&'& UNION: { < /"-$3$2*-$&_4*/5! *> | ( <1(5*6"%$"_4*/5! *> ) } UNION [ ALL ] < /"-$3$2*-$&_4*/5! *> | ( <1(5*6"%$"_4*/5! *> ) [UNION [ ALL ] < /"-$3$2*-$&_4*/5! *> | ( <1(5*6"%$"_4*/5! *> ) [ ...n ] ] D%&'& UNION (.>*+#/,*- %*':";-&-2 +3:? '&)%(!(3 )( !"*+:5<#8 )%&3#"&8: 7&9+20 #' (.>*+#/,*82? '&)%(!(3 +("9*/ !(+*%9&-; (+#/&7(3(* A#!"( !-(".1(3; -#) '/&A*/#0 #' )()&%/( (.>*+#/,*82? !-(".1(3 +("9*/ .2-; (+#/&7(328 #"# )%#3(+#828. J&7 /*";', (.>*+#/,-; '/&A*/#, #' !-(".1& -#)& integer # !-(".1& -#)& varchar; #' %*':";-#%:5<*E( /&.(%& &3-(8&-#A*!7# #!7"5A&5-!, !(3)&+&5<#* !-%(7#. D%&'& UNION ALL 32)("/,*- (.>*+#/*/#* +3:? )(+'&)%(!(3 &/&"(E#A/( $%&'* ALL !( !"*+:5<#8# #!7"5A*/#,8#: !(3)&+&5<#* !-%(7# /* :+&",5-!, #' $(%8#%:*8(E( %*':";-#%:5<*E( /&.(%&; (.>*+#/,*82* '&)%(!2 323(+,-!, 3 %*':";-#%:5<*8 /&.(%* )(!"*+(3&-*";/( .*' :)(%,+(A#3&/#,. 6%# (.>*+#/*/## .("** +3:? '&)%(!(3 +", #'8*/*/#, )(%,+7& 32)("/*/#, ()*%&1## (.>*+#/*/#, 8(9/( #!)(";'(3&-; !7(.7#

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D%&'& INTERSECT )('3(",*- 32.%&-; -(";7( -* !-%(7#, 7(-(%2* )%#!:-!-3:5- 3 7&9+(8 (.>*+#/,*8(8 %*':";-#%:5<*8 /&.(%*. D%&'& EXCEPT )('3(",*- 32.%&-; -(";7( -* !-%(7#, 7(-(%2* )%#!:-!-3:53 )*%3(8 (.>*+#/,*8(8 %*':";-#%:5<*8 /&.(%*, /( (-!:-!-3:5- 3( 3-(%(8 %*':";-#%:5<*8 /&.(%*. 6%# 32)("/*/## (.>*+#/*/#, '&)%(!(3, :7&'23&*82? $%&'&8# UNION, EXCEPT # INTERSECT, !:<*!-3:5- !"*+:5<#* (E%&/#A*/#,: $%&': INTO 8(9*- !(+*%9&-; -(";7( )*%320 )(+'&)%(!; $%&'& ORDER BY )%#8*/,*-!, -(";7( 7( 3!*8: ()*%&-(%: (:7&'23&*-!, 3 7(/1*), )%#8*/*/#* 4-(0 $%&'2 7 "5.(8: )(+'&)%(!:, 3?(+,<*8: 3 (.>*+#/*/#* /* +():!7&*-!,; $%&'2& GROUP BY # HAVING 8(E:- )%#8*/,-;!, -(";7( 7 )(+'&)%(!&8, )%#8*/,-; #? 7 )(":A&*8(8: 7(/*A/(8: %*':";-#%:5<*8: /&.(%: /*";',; $%&'& FOR BROWSE /* 8(9*- .2-; :7&'&/& 3 ()*%&-(%&?, #!)(";':5<#? $%&'2 UNION, EXCEPT # INTERSECT. B ()*%&-(%* INSERT 8(9/( #!)(";'(3&-; $%&'2 UNION, EXCEPT # INTERSECT.

)%,&$0!&( 1%&$23,.-/ "$..(4K ()*%&-(%&8 :)%&3"*/#, +&//28# (-/(!,-!, ()*%&-(%2 UPDATE, INSERT # DELETE. L)*%&-(% UPDATE 32)("/,*- #'8*/*/#* +&//2? -&."#12 #"# )%*+!-&3"*/#, # #8**- !"*+:5<** $(%8&";/(* ()#!&/#*: [ WITH [...n] ] UPDATE [ TOP ( *'0 6).") ) [ PERCENT ] ] { | rowset_function_limited [ WITH ( [ ...n ] ) ]

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./

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} SET { "5+_#$(!%& = { *'0 6).") | DEFAULT | NULL } | {udt_column_name.{{ property_name = expression | field_name = expression } | method_name (argument [,...n ]) } } | !"_#$%&'() {.WRITE (*+,)-./ . ,@Offset ,@Length)} | @variable = expression | @variable = column = expression [ ,...n ] } [ ,...n ] [ < !"#"_OUTPUT> ] [ FROM{ } [ ,...n ] ] [ WHERE { <search_condition> | { [ CURRENT OF { { [ GLOBAL ] cursor_name } | cursor_variable_name } ] } } ] [ OPTION ( [ ,...n ] ) ] [ ; ] < !"#$%> ::= { [ #.,*., . ')0)_1)//+2 . #2.!) . | ')0)_1)//+2 .[ #2.!) ] . | #2.!) .

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!"_$)'& (+_ & _3,.1#$)*&./ "}

!"#$%&# INSERT !#'(")*"%+* ,-* ,&.$/-")'* +%#&0 / %$.-'12 '-' !#",+%$/-")'" ' '(""% +-",234"" 5&#($-6)&" &!'+$)'": [ WITH [ ,...n ] ] INSERT [ TOP ( *+,)-./ . ) [ PERCENT ] ] [ INTO] { <$%&'()> | rowset_function_limited [ WITH ( [ ...n ] ) ] } { [ ( column_list ) ] [ < !"#"_OUTPUT> ] { VALUES ( { DEFAULT | NULL | *+,)-./ . } [ ,...n ] ) | derived_table | execute_statement } } | DEFAULT VALUES [; ] !"#$%&# DELETE /7!&-)*"% 2,$-")'" +%#&0 '8 %$.-'17 '-' !#",+%$/-")'* ' '(""% +-",234"" 5&#($-6)&" &!'+$)'": [ WITH [ ,...n ] ] DELETE [ TOP ( *+,)-./ . ) [ PERCENT ] ] [ FROM ]

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{ <$%&'()> | rowset_function_limited [ WITH ( [ ...n ] ) ] } [ < !"#"_OUTPUT> ] [ FROM [ ,...n ] ] [ WHERE { <search_condition> | { [ CURRENT OF { { [ GLOBAL ] !"_45,#%,) } | !"_3.,.!.//%6_45,#%,) } ] } } ] [ OPTION ( [ ,...n ] ) ] [; ] 9#$8$ WITH &!#","-*"% /#"("))7: '(")2"(7: #"82-6%'#234': )$.&#, '+!&-682"(7: ,#2;'(' &!"#$%&#$(' (&,2-*. <$!#'("#: USE MYDB; WITH NewRes(f1, f3) AS ( SELECT f1, COUNT(*) FROM Tbl1 AS t1 WHERE f1 IS NOT NULL GROUP BY f1 ) SELECT f1, f3 FROM NewRes ORDER BY f1;

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./ = !&-" f3 8$!#&+$ '8 NewRes &%&.#$>$"%+* 0&-'?"+%/& +%#&0 / ;#2!!", +&8,$/$"(&: !& !&-3 f1.

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!"# 3. $%&'%#""(#) *%!+# SQL-*!%,!%#. !"# Transact-SQL @870 Transact-SQL !&8/&-*"% 8$!'+7/$%6 /7#$>")'*, &.A*/-*%6 0&)+%$)%7 ' !"#"("))7", #"$-'8&/7/$%6 !#&1",2#7. .A*/-")'" !"#"("))7B /7!&-)*"%+* &!"#$%&#&( DECLARE. C(* &.A*/-*"(&: !"#"("))&: )$?')$"%+* + +'(/&-$ @. @870 Transact-SQL !&8/&-*"% '+!&-68&/$%6 .&-6D&: )$.&# %'!&/ ,$))7B (/0-3?$* %'!7 ,$))7B, !#'+24'" Microsoft SQL Server, +!"1'$-6)7" %'!7 ,$))7B (uniqueidentifier,sql_variant) ' %'!XML).

$%&" '())"* E'!7 ,7))7B '("3% )" %&-60& !"#"("))7", )& ' %$0'" &.A"0%7 0$0: +%&-.17 %$.-'1 ' !#",+%$/-")':; !$#$("%#7 B#$)'(7B !#&1",2#; /&8/#$4$"(7" 8)$?")'* ,-* 52)01':. = *870" Transact-SQL !&,,"#>'/$3%+* +-",234'" %'!7 ,$))7B: !"#$%&"!''(!: int &% -2^31 (-2,147,483,648) ,& 2^31-1 (2,147,483,647) 4 .$:%$ smallint -2^15 (-32,768) to 2^15-1 (32,767) 2 .$:%$ tinyint &% 0 ,& 255 1 .$:% bigint &% -2^63 (-9,223,372,036,854,775,808) to 2^63-1 ,& (9,223,372,036,854,775,807) 8 .$:% bit 1, 0 '-' NULL )!*!&+)!''(! & ,%-&%.#)/''#0 +#$'#&+12: numeric ($0+'($-6)& ,&!2+%'(&" ?'+-& 8)$0&/ 38 decimal ($0+'($-6)& ,&!2+%'(&" ?'+-& 8)$0&/ 38 )!*!&+)!''(! & 3"/)/2*!0 +#$-#0: float - 1.79E+308 to -2.23E-308, 0 and 2.23E-308 to 1.79E+308

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42

float [ ( n ) ] – n ?'+-& !"#$, !%&#'()*+,#+ ,-."!%%#/ (#" 1 0# 53); $ )-$!%!,#%"! #" 1"#2# ).-3+.!+ )-.!,-+" 4 -/"- (#"1 0# 24, "#3.#%"( 7 ).-4#$) !'! 8 -/"#$ (25-53, "#3.#%"( 15 ).-4#$) real - 3.40E + 38 to -1.18E - 38, 0 and 1.18E - 38 to 3.40E + 38 !"!#"$% money #" -922,337,203,685,477.5808 0# 922,337,203,685,477.5807 8 -/"#$ smallmoney #" - 214,748.3648 0# 214,748.3647 4 -/"&'()*+,"$!: char varchar text* &'()*+,"$!, '&-*+,./01'! Unicode: nchar ntext* nvarchar )*'2"$!: binary varbinary image* 3'-$ 43$/)5!(!"': datetime smalldatetime +6 547*3$ & 8/5&*5*( cursor (,#5.# !%&#'()#$-"( "#'(4# 0'6 &+7+,+..89 ! &-7-,+"7#$ 97-.!,89 &7#:+0*7) +6 954"!"'6 5!./+,3'5/01!:* "47*54: table *&34+,"$! 3'-$:

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sql_variant – 0'6 97-.+.!6 &+7+,+..89 '; #2# "!&- ()- .+4#"#78, !%4';3+.!+,) uniqueidentifier – 0'6 97-.+.!6 16 -/"#$#2# GUID xml – 0'6 0-..89 $ XML-<#7,-"+ timestamp – %!.#.!, "!& rowversion. =!&8 &#,+3+..8+ %!,$#'#, * .+ &7+0&#'-2-+"%6 �+75!$-"( $ &#%'+0*;>!9 $+7%!69 Microsoft SQL Server. Transact-SQL &#)$#'6+" &7!,+.6"( 0$- "!&- !0+."!
!"#$%&#' ()'*$ Transact-SQL A)84 Transact-SQL �+75!$-+" %'+0*;>!+ 4#.%"7*4:!!: !"#: BEGIN END, $%!"&'() "*+,-.",: IF Boolean_expression { sql_statement | statement_block } [ ELSE { sql_statement | statement_block } ] /0#! WHILE: WHILE Boolean_expression { sql_statement | statement_block } [ BREAK ] { sql_statement | statement_block } [ CONTINUE ] { sql_statement | statement_block } 1$'#/02 CASE: CASE input_expression WHEN when_expression THEN result_expression

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./ [ ...n ] [ ELSE else_result_expression ] END 1$'#/02 CASE: CASE WHEN Boolean_expression THEN result_expression [ ...n ] [ ELSE else_result_expression ] END

<*.4:!6 COALESCE. A)84 Transact-SQL &7+0#%"-$'6+" .- #7 $%"7#+..89 <*.4:!/ (,-"+,-"!3+%4!+, %"7#4#$8+, <*.4:!! 0-"8/$7+,+.!, <*.4:!! 4#.-;>!9 4#0 #&+7-"#7#$ )-&7#%-. ?'6 0# -$'+.!6 0-..89 &7+0#%"-$'6+"%6 #&+7-"#7 MERGE. A)84 Transact-SQL &#)$#'6+" $8&#'.6"( # 7- #"4* !%4';3+.!/ &#%7+0%"$#, #&+7-"#7- TRY-CATCH.

+&,-./ ?'6 %#)0-.!6 97-.!,89 &7#:+0*7 !%&#'()*+"%6 #&+7-"#7 CREATE PROCEDURE, 4#"#78/ !,++" %'+0*;>++ <#7,-'(.#+ #&!%-.!+:

44

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45

CREATE { PROC | PROCEDURE } [ !"#$.] %#&_'()*"+,(- [ ; number ] [ { @'$($#".( [ !"#$_.%'_+$//-!. ] .%'_+$//-! } [ VARYING ] [ = default ] [ [ OUT [ PUT ] ] [ ,...n ] [ WITH [ ENCRYPTION ] [ RECOMPILE ] [ 1,-3-_EXECUTE_AS ] [ FOR REPLICATION ] AS { {[ BEGIN ] )'"($.)(- [ END ]} [;][ ...n ] | EXTERNAL NAME 0)(1$.12$ .#".)+ } [;] ?'6 %#)0-.!6 <*.4:!/ !%&#'()*+"%6 #&+7-"#7 CREATE FUNCTION, 4#"#78/ !,++" %'+0*;>++ <#7,-'(.#+ #&!%-.!+: !"#$%&"$ '(&!)*$: CREATE FUNCTION [ !"#$. ] %#&_3,/1*%% ( [ { @'$($#".( [ AS ][ !"#$_.%'$_+$//-!. ] .%'_'$($#".$ [ = default ] } [ ,...n ] ] ) RETURNS .%'_4)54($6$"#)7)_5/$8"/%& [ WITH [ ,...n ] ]

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./ [ AS ] BEGIN ."2) 3,/1*%% RETURN 4)54($6$"#)" 5/$8"/%" END [ ; ] Inline '(&!)*$: CREATE FUNCTION [ !"#$. ] %#&_3,/1*%% ( [ { @'$($#".( [ AS ] [ !"#$_.%'$_+$//-!. ] .%'_'$($#".($ [ = default ] } [ ,...n ] ] ) RETURNS TABLE [ WITH <"*/00_1$'#/00> [ ,...n ] ] [ AS ] RETURN [ ( ] "*+,-.",_select [ ) ] [ ; ] +(&!)*$, ,-.,%"/"0/"$ 1"2#*)(: CREATE FUNCTION [ !"#$. ] %#&_3,/1*%% ( [ { @'$($#".( [ AS ] [ !"#$_.%'$_+$//-!. ] .%'_'$($#".($ [ = default ] } [ ,...n ] ] )

46

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47

RETURNS @return_variable TABLE <"*,+4+!+'0+_.- !0/(> [ WITH <"*/00_1$'#/00> [ ,...n ] ] [ AS ] BEGIN ."2)_3,/1*%% RETURN END [ ; ] CLR '(&!)*$: CREATE FUNCTION [ schema_name. ] function_name ( { @parameter_name [AS] [ type_schema_name. ] parameter_data_type [ = default ] } [ ,...n ] ) RETURNS { return_data_type | TABLE } [ WITH [ ,...n ] ] [ AS ] EXTERNAL NAME assembly_name.class_name.method_name [ ; ] <-3)**_'(&!)**>::= { [ ENCRYPTION ] | [ SCHEMABINDING ] | [ RETURNS NULL ON NULL INPUT | CALLED ON NULL INPUT] | [ EXECUTE_AS_1,-3- ] }

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48

<-3)**_clr_'(&!)**>::= } [ RETURNS NULL ON NULL INPUT | CALLED ON NULL INPUT ] | [ EXECUTE_AS_1,-3- ] } <-3%454#4&*4_1"2#*)6>:: = ( { <)'("+"2"/%"_ .)20*$> <)7($/%8"/%&_*"2) ./) .%_ .)20*$> | <"*,+4+!+'0+_&(50%!06"7"_%."! /-> } [ <"7,-'05+'02_/+!"%.'"%.0_.- !0/(> ] [ ,...n ] ) ::= ( { .)20"* .%'_+$//-! } [ ,...n ] ) <-3%454#4&*4_71-#2)">::= { { .)20"* .%'_+$//-! } [ [ DEFAULT constant_expression ] [ COLLATE collation_name ] | [ ROWGUIDCOL ] ] | [ IDENTITY [ (/$8_5/$8"/%" , '(%($6"/%" ) ] ] [ <"7,-'05+'0+_/+!"%.'"%.0_%."! /(> [ ...n ] ] } <-8%"&*94&*4_ !"#$%&#$%'_$%#"( )>::= { [ NULL | NOT NULL ] { PRIMARY KEY | UNIQUE } [ CLUSTERED | NONCLUSTERED ]

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49

[ WITH FILLFACTOR = fillfactor | WITH ( < !"##_#$%&'() > [ , ...n ] ) [ ON { filegroup | "default" } ] | [ CHECK ( logical_expression ) ] [ ,...n ] } <#*+!,!"!&'!_-./'$"'0#1#_$%#"( )>::= !"#$%& AS '()*+%,-% <#1+)&'/!&'!_ !"#$%&#$%'_%)("' .>::= { { PRIMARY KEY | UNIQUE } [ CLUSTERED | NONCLUSTERED ] ( !"#$%& [ ASC | DESC ] [ ,...n ] ) [ WITH FILLFACTOR = fillfactor | WITH ( < !"##_#$%&'()> [ , ...n ] ) | [ CHECK ( logical_expression ) ] [ ,...n ] } <#* ''_'&,!2$)>::= { PAD_INDEX = { ON | OFF } | FILLFACTOR = fillfactor | IGNORE_DUP_KEY = { ON | OFF } | STATISTICS_NORECOMPUTE = { ON | OFF } | ALLOW_ROW_LOCKS = { ON | OFF } | ALLOW_PAGE_LOCKS ={ ON | OFF } } !"#$%!&'() *)+,#-$%). ")&$/.#-0) +!1!%.-1)0 *&2 3,("4$$ – 1024. 5%2 +!1!%.-1! 3,("4$$ (!/$(!.-#2 # +1.3$"#! @.

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50

6&.*,78$9 +1$%.1 $&&7#-1$1,.- +1$%.(.($. inline-3,("4$$, 0):01!8!78.9 -!;&$4,: CREATE FUNCTION S1.MyFn (@i1 int) RETURNS TABLE AS RETURN ( SELECT t1.ID, t1.Name, SUM(t2.F3) AS '* +& (,--.' FROM tbl1 AS t1 JOIN tbl2 AS t2 t2.ID = t1.ID JOIN tbl3 AS t3 ON t3.IDzak = t2.IDzak WHERE t3.IDcust = @i1 GROUP BY t1.ID, t1.Name ); GO <(!/.($2 3,("4$9, 0):01!8!78$= -!;&$4,, %)>,- ;?-' $#+)&':)0!(? 0 SQL-)+.1!-)1!= -!"$% @. );1!:)%, "!" $ +)*:!+1)#?. A!+1$%.1, 0?:)0 3,("4$$ %)@.- ;?-' ,"!:!( 0) 31!:. FROM )+.1!-)1! SELECT #&.*,78$% );1!:)%: SELECT * FROM S1.MyFn (55); -- !)/)-&0/ ,')1.2)&0 -- 1$)3&$#& ! +4 IDcust 2 tbl3

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2

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!"#$%% #*/*5-=* SQLColumnPrivileges

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SQLColumns

A*2'1.?.,9 /)%/*# %-," )*+,7 ' !#.2.""*7 9.;+%$,.

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SQLForeignKeys

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SQLPrimaryKeys

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SQLProcedureColumns

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SQLProcedures

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SQLSpecialColumns

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SQLStatistics

A*2'1.?.,9 %"8*1-.$%= * 9.;+%$, % /)%/*# %"6,#/*', .//*$%%1*'.""(0 / ",7.

SQLTablePrivileges

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SQLTables

A*2'1.?.,9 ' '%6, 1,2!+:9%1!=?,5* ".;*1. /)%/*# 9.;+%$, 01."%-(0 ' !#.2.""*- %/9*>"%#, 6.""(0.

')9-:-@.+"%+ -(+7*/-7* SQLFreeStmt

I.',13.,9 *;1.;*9#! *),1.9*1., !6.+&,9 1,2!+:9%1!=?%7 ".;*1 % */'*;*B6.,9 '/, 1,/!1/(, .//*$%%1*'.""(, / 6.""(6,/#1%)9*1*- *),1.9*1..

SQLCloseCursor

I.#1('.,9 #!1/*1, *9#1(9(7 / 6.""(6,/#1%)9*1*- *),1.9*1., % !6.+&,9

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60

1,2!+:9%1!=?%7 ".;*1. SQLCancel

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SQLEndTran

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')9-:-@.+"%+ )-+.%"+"%& SQLDisconnect

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SQLFreeHandle

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&'(#)%*+,)<,1,6 %/)*+:2*'."%,- 8!"#$%7 ODBC API )1%+*B,"%,-#+%,"9 /*26.,9 +*('#0)&%# (0+*-&030'!&%#) %'#41*-05, *)1,6,+&=?%7 5+*;.+:"(7 #*"9,#/9 6+& 6*/9!). # %/9*>"%#.- 6.""(0. 4,/#1%)9*1 *#1!B,"%& )1,6*/9.'+&,9 6*/9!) # 1.2+%>"*7 %"8*1-.$%%, '#+=>.& 9,#!?%, !/9."*'#% '/,0 .91%;!9*' *#1!B,"%&, 6,/#1%)9*1( /*,6%","%7, /*26.""(, 6+& 6.""*5* *#1!B,"%&, 6%.5"*/9%#! !1*'"& *#1!B,"%&. 4,/#1%)9*1 *#1!B,"%& *)1,6,+&,9 ",#*9*1!= /91!#9!1!, /*6,1B.?!= 6.""!= %"8*1-.$%=. J,)*/1,6/9',""* 6,/#1%)9*1 *#1!B,"%& *;(>"* %/)*+:2!,9/& )1% '(2*', 8!"#$%7 SQLDataSources % SQLDrivers % )1% /*26."%% 6,/#1%)9*1*' /*,6%","%&. 4+& )1%+*B,"%&-#+%,"9., 1,.+%2!=?,5* / %/)*+:2*'."%,- 8!"#$%7 ODBC API 6*/9!) # %/9*>"%#! 6.""(0, 6*/9.9*>"* %-,9: *6%" 6,/#1%)9*1 *#1!B,"%&.

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61

C*2."%, 6,/#1%)9*1. *#1!B,"%, '()*+"&,9/& 8!"#$%,7 SQLAllocHandle, . */'*;*B6,"%, – 8!"#$%,7 SQLFreeHandle. !"#$%& SQLAllocHandle '',6,". ' ',1/%% ODBC 3.x '-,/9* /!?,/9'*'.'3%0 ' ',1/%% ODBC 2.0 8!"#$%7 SQLAllocConnect, SQLAllocEnv % SQLAllocStmt. 4+& 9*5* >9*;( )1%+*B,"%,, %/)*+:2!=?,, 8!"#$%= SQLAllocHandle, -*5+* 1.;*9.9: >,1,2 61.7',1( ODBC 2.x, -,",6B,1 61.7',1*' ',1/%% 3.x 2.-,"&,9 '(2*'( '(2*'( 8!"#$%7 91,9:,7 ',1/%% ". %0 .".5*5% '9*1*7 ',1/%% % ),1,6.,9 9.#*7 "*9#*11,#9%1*'.""(7" '(2*' ODBC-61.7',1!. 4+& )*6#+=>,"%& # ;.2, 6.""(0 /+,6!,9 /*26.9: +*('#0)&%# (0+*-&030'!&%#) (%*+0-*-05. 4+& *6"*5* 6,/#1%)9*1. *#1!B,"%& -*B,9 ;(9: /*26."* ",/#*+:#* 6,/#1%)9*1*' /*,6%","%&. 4+& '()*+","%& SQL-*),1.9*1. /*26.,9/& 6,/#1%)9*1 (%6,"9%8%#.9*1) *),1.9*1.. 4+& *6"*5* 6,/#1%)9*1. /*,6%","%& -*B,9 ;(9: /*26."* ",/#*+:#* 6,/#1%)9*1*' *),1.9*1.. <* /),$%8%#.$%% ODBC 6+& #.B6*5* )1%+*B,"%& 61.7',1( -*5!9 )*66,1B%'.9: ",*51."%>,""*, >%/+* 6,/#1%)9*1*' #.B6*5* 9%).. F6".#* #*"#1,9"(7 61.7',1 -*B,9 ".#+.6('.9: ",#*9*1(, *51."%>,"%& ". #*+%>,/9'* 6,/#1%)9*1*'. !"#$%&, %/)*+:2!,-.& 6+& /*26."%& 6,/#1%)9*1. *#1!B,"%&, /*,6%","%&, *),1.9*1. %+% )1%+*B,"%& %-,,9 /+,6!=?,, 8*1-.+:"*, *)%/."%,: SQLRETURN SQLAllocHandle( SQLSMALLINT HandleType, SQLHANDLE InputHandle, SQLHANDLE * OutputHandlePtr);

<.1.-,91 HandleType ([Input]) !#.2('.,9 *6"*7 %2 /+,6!=?%0 #*"/9."9 9%) /*26.'.,-*5* 6,/#1%)9*1.: SQL_HANDLE_ENV SQL_HANDLE_DBC

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62

SQL_HANDLE_STMT SQL_HANDLE_DESC <.1.-,91 InputHandle ([Input]) *)1,6,+&,9 #*"9,#/9, ' #*9*1(7 6*;.'+&,9/& /*26.'.,-(7 6,/#1%)9*1. K/+% 9%) 6,/#1%)9*1. SQL_HANDLE_ENV, 9* ).1.-,91 InputHandle !#.2('.,9/& #*"/9."9*7 SQL_NULL_HANDLE. <1% /*26."%% 6,/#1%)9*1. /1,6( ).1.-,91 InputHandle 2.6.,9 6,/#1%)9*1 *#1!B,"%&, . 6+& /*26."%& 6,/#1%)9*1. *),1.9*1. (SQL_HANDLE_STMT) % 6,/#1%)9*1. )1%+*B,"%& (SQL_HANDLE_DESC) – 6,/#1%)9*1 /*,6%","%&. H6,"9%8%#.9*1(, *)1,6,+&=?%, 9%) 6,/#1%)9*1. % /.- 6,/#1%)9*1 *)%/."( ' 2.5*+*'*>"(0 8.7+.0 sql.h % sqltypes.h. <.1.-,91 OutputHandlePtr ([Output]) –G9* !#.2.9,+: ". ;!8,1, ' #*9*1(7 )*-,?.,9/& /*26.'.,-.& 6+& 6,/#1%)9*1. /91!#9!1. 6.""(0. <*/+, /*26."%& 6,/#1%)9*1. *#1!B,"%& /+,6!,9 !/9."*'%9: .91%;!9 SQL_ATTR_ODBC_VERSION. A )1*9%'"*- /+!>., )1% )*)(9#, /*26.9: 6,/#1%)9*1 /*,6%","%& )1*%2*76,9 *3%;#..

./'01 *,2#345'"%6 # %(+,5"%#! 21""-/ J. /+,6!=?,7 /0,-, *9*;1.B,". )*/+,6*'.9,+:"*/9: 6,7/9'%7 )1%+*B,"%&#+%,"9. 6+& 1,.+%2.$%% 6*/9!). # %/9*>"%#! 6.""(0.

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63

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64

C,'2%"'"%' ( %(+,5"%#,0 21""-/ 4+& ",)*/1,6/9',""*5* )*6#+=>,"%, # ;.2, 6.""(0 ODBC API )1,6*/9.'+&,9 /+,6!=?%, 91% 8!"#$%%: SQLConnect - /*,6%","%, / %/9*>"%#*- 6.""(0 )* DSN, %-,"% % ).1*+= )*+:2*'.9,+&; SQLDriverConnect - /*,6%","%, / %/9*>"%#*- 6.""(0 )* !#.2.""*7 /91*#, /*,6%","%& %+% )1% )*-*?% *9*;1.B.,-*5* 6%.+*5. 6+& %"9,1.#9%'"*5* ''*6. ).1.-,91*' /*,6%","%&; SQLBrowseConnect - /*,6%","%, / %/9*>"%#*- 6.""(0 / )1,6'.1%9,+:"()*/+,6*'.9,+:"(2.)1*/*.91%;!9*' /*,6%","%&.

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

9-:,)#1 21""-/ 4+& %2'+,>,"%& 6.""(0 / %/)*+:2*'."%,- ODBC API /".>.+. /+,6!,9 '(2'.9: 8!"#$%=, '()*+"&=?!= SQL-*),1.9*1, #*9*1(7 *)1,6,+&,9 8*1-%1!,-(7 1,2!+:9%1!=?%7 ".;*1. H 9*+:#* 2.9,- -*B"* )1%/9!).9: # '(;*1#, 6.""(0. ODBC API )1,6*/9.'+&,9 6'. /)*/*;. %2'+,>,"%& 6.""(0 %2 1,2!+:9%1!=?,5* ".;*1.:

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65

/ )1,6'.1%9,+:"(- /'&2('."%,- )*+,7 1,2!+:9%1!=?,5* ".;*1. / ),1,-,""(-% */"*'"*5* &2(#. )1*51.--%1*'."%&; )1&-.& '(;*1#. #.B6*5* )*+& 1,2!+:9%1!=?,5* ".;*1. ' !#.2('.,-!= ),1,-,""!= */"*'"*5* &2(#. )1*51.--%1*'."%&. L,2!+:9%1!=?%7 ".;*1 /*26.,9/& )1% '()*+","%% SQL-*),1.9*1. SELECT. 4+& '()*+","%& 2.)1*/. ODBC API )1,6*/9.'+&,9 /+,6!=?%, 6', 8!"#$%%: SQLExecute - '()*+"&,9 *9#*-)%+%1*'.""(7 SQL-*),1.9*1; SQLExecDirect -'()*+"&,9 SQL-*),1.9*1, !#.2('.,-(7 ).1.-,91*-. !"#$%& SQLExecDirect 1,.+%2!,9 %+-%6!7%8.2 0-&*#3*2(, )1% #*9*1*)1*$,// #*-)%+&$%% SQL-*),1.9*1. % ,5* '()*+","%, */!?,/9'+&,9/& ,6%"*B6( )1% '(2*', 6.""*7 8!"#$%%. !"#$%% SQLPrepare % SQLExecute 1,.+%2!=9 9-%7%6!7%8.2 0-&*#3*2(: /".>.+. '()*+"&,9/& #*-)%+&$%& *),1.9*1. % 8*1-%1!,9/& )+." '()*+","%&, . 2.9,- '*2-*B"* -"*5*#1.9"*, '()*+","%, )*65*9*'+,""*5* *),1.9*1.. !"#$%& SQLExecDirect %-,,9 /+,6!=?,, 8*1-.+:"*, *)%/."%,: SQLRETURN SQLExecDirect( SQLHSTMT StatementHandle, SQLCHAR * StatementText, SQLINTEGER TextLength); <.1.-,91 StatementHandle ([Input]) !#.2('.,9 6,/#1%)9*1 *),1.9*1., ).1.-,91 StatementText ([Input]) *)1,6,+&,9 '()*+"&,-(7 SQL- *),1.9*1, TextLength (Input]) - 6+%". /91*#% *StatementText. <1% '()*+","%% SQL-*),1.9*1., /*6,1B.?,5* ).1.-,91(, %0 2".>,"%& )1,6'.1%9,+:"* 6*+B"( ;(9: *)1,6,+,"( '(2*'*- 8!"#$%7 SQLParamData % SQLPutData %+% SQLBindParameter. A )1*9%'"*- /+!>., )1% '()*+","%% 8!"#$%% SQLExecDirect ;!6,9 '*2'1.?,"* 2".>,"%, SQL_NO_DATA. <1% -"*5*3.5*'*- %"9,18,7/, ),1'*7 6*+B". ;(9: '()*+",". 8!"#$%& SQLPrepare, %"%$%%1!=?.& #*-)%+&$%= SQL-*),1.9*1.. !"#$%& SQLPrepare %-,,9 /+,6!=?,, 8*1-.+:"*, *)%/."%,:

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./

66

SQLRETURN SQLPrepare( SQLHSTMT StatementHandle, SQLCHAR * StatementText, SQLINTEGER TextLength); <.1.-,91 StatementHandle ([Input]) !#.2('.,9 6,/#1%)9*1 *),1.9*1., ).1.-,91 StatementText ([Input]) *)1,6,+&,9 9,#/9 #*-)%+%1!,-*5* SQL*),1.9*1., TextLength ([Input]) – G9* 6+%". /91*#% *StatementText. !"#$%& SQLExecute '()*+"&,9 *9#*-)%+%1*'.""(7 SQL-*),1.9*1. K/+% '()*+"&,-(- SQL-*),1.9*1*- ;(+ *),1.9*1 SELECT, 9* ' 1,2!+:9.9, '()*+","%& SQLExecute /*26.,9/& 1,2!+:9%1!=?%7 ".;*1. !"#$%& SQLExecute %-,,9 /+,6!=?,, 8*1-.+:"*, *)%/."%,: SQLRETURN SQLExecute( SQLHSTMT StatementHandle); <.1.-,91 StatementHandle ([Input]) !#.2('.,9 6,/#1%)9*1 *),1.9*1. J.)1%-,1: SQLHSTMT hstmtS, hstmtU; SQLExecDirect(hstmtS, "SELECT F2 FROM TBL1 ", SQL_NTS); SQLPrepare(hstmtU, "UPDATE TBL1 SET F2=F2*10 WHERE F1=20", SQL_NTS); SQLExecute(hstmtU); L,2!+:9%1!=?%7 ".;*1 8*1-%1!,9/& ' '(6,+&,-*7 *;+./9% ).-&9%. 4+& 9*5* >9*;( %/)*+:2*'.9: 6.""(,, 2.)%/.""(, ' 1,2!+:9%1!=?%7 ".;*1, %0 /+,6!,9 %2'+,>: %2 9*7 *;+./9% ).-&9% ' ),1,-,""(, %/)*+:2!,-*5* &2(#. )1*51.--%1*'."%&. H2'+,>,"%, 6.""(0 %2 1,2!+:9%1!=?,5* ".;*1. ' ),1,-,""(, -*B,9 ;(9: '()*+","*: '(2*'*- 8!"#$%% SQLFetch %+% SQLFetchScroll; '(2*'*- 8!"#$%% SQLGetData.

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67

!"#$%% SQLFetch %+% SQLFetchScroll '/,56. '()*+"&=9 )1*6'%B,"%, #!1/*1. ". /+,6!=?!= 2.)%/:. <1% G9*- 8!"#$%& SQLFetch, 1,.+%2!,9 -,0."%2- "*6"*".)1.'+,""*5* #!1/*1.", . 8!"#$%& SQLFetchScroll, )*2'*+&,9 ' 2.'%/%-*/9% *9 %/)*+:2!,-*5* %/9*>"%#. 6.""(0 1,.+%2*'('.9: -,0."%2- "6'!".)1.'+,""*5* #!1/*1." % -,0."%2- ")1&-*7 '(;*1#%". !"#$%% SQLFetch %+% SQLFetchScroll '()*+"&=9 *6"*'1,-,""*, %2'+,>,"%, 6.""(0 9*+:#* ' 9*- /+!>.,, ,/+% )*+& 1,2!+:9%1!=?,5* ".;*1. )1,6'.1%9,+:"* ;(+% /'&2."( / ),1,-,""(-% '(2*'*- 8!"#$%% SQLBindCol 6+& #.B6*5* /'&2('.,-*5* )*+&. !"#$%& SQLFetch %-,,9 /+,6!=?,, 8*1-.+:"*, *)%/."%,: SQLRETURN SQLFetch( SQLHSTMT StatementHandle); <.1.-,91 StatementHandle ([Input]) !#.2('.,9 6,/#1%)9*1 *),1.9*1. !"#$%& SQLGetData %-,,9 /+,6!=?,, 8*1-.+:"*, *)%/."%,: SQLRETURN SQLGetData( SQLHSTMT StatementHandle, SQLUSMALLINT ColumnNumber, SQLSMALLINT TargetType, SQLPOINTER TargetValuePtr, SQLINTEGER BufferLength, SQLINTEGER * StrLen_or_IndPtr); <.1.-,91 StatementHandle ([Input]) !#.2('.,9 6,/#1%)9*1 *),1.9*1. <.1.-,91 ColumnNumber ([Input]) !#.2('.,9 "*-,1 /'&2('.,-*5* /9*+;$. 1,2!+:9%1!=?,5* ".;*1. (".>%".& / 1). <* !-*+>."%= /9*+;,$ "*-,1 0 &'+&,9/& /9*+;$*- -.1#,1. /91*#%, ' 9*- /+!>., ,/+% -.1#,1( 6*/9!)"(. <.1.-,91 TargetType ([Input]) *)1,6,+&,9 C-9%) 6.""(0 6+& ;!8,1.*TargetValuePtr. <.1.-,91 TargetValuePtr ([Output]) *)1,6,+&,9 ;!8,1, ' #*9*1(7 '()*+"&,9/& %2'+,>,"%, 6.""(0, . ).1.-,91 BufferLength ([Input]) *)1,6,+&,9 1.2-,1 G9*5* ;!8,1. ' ;.79.0. 4+& 6.""(0, %-,=?%0 8%#/%1*'.""!= 6+%"!, 9.#%0 #.# $,+*>%/+,""(, 2".>,"%&, 61.7',1 %5"*1%1!,9 2".>,"%, ).1.-,91. BufferLength.

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./ <.1.-,91 StrLen_or_IndPtr ([Output]) *)1,6,+&,9 ;!8,1, ' #*9*1*'*2'1.?.,9/& 1.2-,1 6.""(0 %+% %"6%#.9*1 C+,6!=?%7 )1%-,1 %++=/91%1!,9 )1%-,","%, -,0."%2-. )*/91*>"*7 '(;*1#% 6.""(0 ;,2 %0 )1,6'.1%9,+:"*5* /'&2('."%&. //OBDC_Connect.cpp #include "stdafx.h" #include "ODBC_connect.h" #include #ifdef _DEBUG #define new DEBUG_NEW #endif CWinApp theApp; // !"#$%&'(& )!"#*+, -.(%)/&'(# using namespace std; int _tmain(int argc, TCHAR* argv[], TCHAR* envp[]) { int nRetCode = 0; if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0)) { _tprintf(_T(" 0(!*, ('(1(,%(2,1( MFC\n")); nRetCode = 1; } else { std::cout<<"Begin"<<std::endl; SQLHENV henv; // 3&4*.(-+). )*.5/&'(# SQLHDBC hdbc; // 3&4*.(-+). 4)&6('&'(# SQLHSTMT hstmt; // 3&4*.(-+). )-&.,+)., SQLRETURN retcode; // 7)6 $)2$.,+, /*8'(1(,%(2,1(# 6&4*.(-+)., )*.5/&'(# */

68

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69

retcode = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &henv); if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) { std::cout<<"SQLAllocHandle 4)26,' 54-&0')"<<std::endl; /* -.&6&%&'(& $&.4(( ODBC */ retcode = SQLSetEnvAttr(henv, SQL_ATTR_ODBC_VERSION, (void*)SQL_OV_ODBC3, 0); if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) { /* 8'(1(,%(2,1(# 6&4*.(-+)., 4)&6('&'(# */ retcode = SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc); if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) { std::cout<<"SQLAllocHandle 4)26,' 54-&0') "<<std::endl; retcode = SQLConnect(hdbc, (SQLCHAR*) "MySQLDB", SQL_NTS, (SQLCHAR*) "", SQL_NTS, (SQLCHAR*) "", SQL_NTS); if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO){ /* 8'(1(,%(2,1(# 6&4*.(-+)., )-&.,+)., */ retcode = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt); SQLCHAR sqf3[50]; SQLINTEGER sqf1,sqf2,sbf1,sbf2,sbf3; SQLCHAR selecttxt[] ="SELECT f1, f2, f3 FROM tbl1"; /* 9)26,'(& .&25%:+(.5;<&=) ',!)., */ retcode = SQLExecDirect(hstmt, selecttxt, SQL_NTS); if (retcode == SQL_SUCCESS) { while (TRUE) { /* >?!).*, 6,''?@ */ retcode = SQLFetch(hstmt);

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./

70

if (retcode == SQL_ERROR || retcode == SQL_SUCCESS_WITH_INFO) { } if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO){ /* 82$%&A&'(& 6,''?@ +.&@ -)%&B .&25%:+(.5;<&=) ',!)., */ SQLGetData(hstmt, 1, SQL_C_ULONG, &sqf1, 0, &sbf1); SQLGetData(hstmt, 2, SQL_C_ULONG, &sqf2, 0, &sbf2); SQLGetData(hstmt, 3, SQL_C_CHAR, sqf3, 50, &sbf3); /* C,-(4: $ -)+)* $?$)6, 4+.)* .&25%:+(.5;<&=) ',!)., */ std::cout<< "1: "<<sqf1<<" 2: "<<sqf2<<" 3: "<< sqf3<<" "<<std::endl; } else { break; } } } /* 4$)!)/6&'(& 6&4*.(-+).)$ */ if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) { SQLFreeHandle(SQL_HANDLE_STMT, hstmt); } SQLDisconnect(hdbc); } SQLFreeHandle(SQL_HANDLE_DBC, hdbc); } } SQLFreeHandle(SQL_HANDLE_ENV, henv); } return nRetCode;

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./ } } //OBDC_Connect.h #pragma once #include "resource.h" #ifndef _AFX_NOFORCE_LIBS //////////////////////////////////////////////////////////////// // Win32 !(!%()+&*( #pragma comment(lib, "odbc32.lib") #pragma comment(lib, "odbccp32.lib") #endif //!_AFX_NOFORCE_LIBS #ifndef __SQL #include <sql.h> // #6.) #endif #ifndef __SQLEXT #include <sqlext.h> // .,40(.&'(& #endif !"#$%&, '()*+"&,-.& )/01'./%20+3"*0 4'&5('."%0 1.""(6 %7002 4+01!,-00 8*/7.+3"*0 *)%4."%0: SQLRETURN SQLBindCol( SQLHSTMT StatementHandle, SQLUSMALLINT ColumnNumber, SQLSMALLINT TargetType, SQLPOINTER TargetValuePtr, SQLINTEGER BufferLength, SQLLEN * StrLen_or_Ind);

71

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9".:0"%& )./.702/*' 8!"#$%% SQLBindCol .".+*;%:"( 5".:0"%&7 )./.702/*' 8!"#$%% SQLGetData. <* 8!"#$%& SQLBindCol !#.5('.024& 2*+3#* *1%" /.5 1+& #.=1*;* )*+&, . 5.207 '(>*/#. 1.""(6 '()*+"&024& .'2*7.2%:04#% )/% '(5*'0 8!"#$%% SQLFetch.

!"!#$%"&'$()&$ *!+",(?./.702/*7 ".5('.024& )0/070"".&, %4)*+35!07.& ' SQL-*)0/.2*/0. ?/%70"0"%0 )./.702/*' )*5'*+&02 8*/7%/*'.23 SQL-*)0/.2*/( "0)*4/0142'0""* '* '/07& '()*+"0"%& )/%+*=0"%&. @.#, )/% %4)*+35*'."%% 7"*;*A.;*'*;* %"20/80B4., )/% #*2*/*7 )/*$044 #*7)%+&$%% % '()*+"0"%& SQL-*)0/.2*/. )/*%46*1%2 #.# )*4+01*'.20+3"(0 10B42'%&, 1*42.2*:"* *2#*7)%+%/*'.23 SQL-*)0/.2*/ 4 )./.702/.7% '7042* &'"*;* !#.5."%& 5".:0"%B )*+0B 2.>+%$( >.5( 1.""(6, . 5.207 7"*;*#/.2"* '()*+"&23 1.""(B *)0/.2*/ 4 /.5+%:"(7% 5".:0"%&7% )./.702/*'. <.)/%70/: INSERT INTO TBL1 (F_ID, F2, F3) VALUES (?, ?, ?)

?./.702/( 7*;!2 >(23 03*-%4!--.30 % )%"050%--.30. ?*5%$%*""(0 )./.702/( !#.5('.,24& 4%7'*+*7 '*)/*4%20+3"(B 5".# (?), ".5('.07(7 7./#0/*7 )./.702/*'. ?/% '()*+"0"%% *)0/.2*/. '7042* )./.702/. ' 4**2'0242'!,-!, )*5%$%, SQL-*)0/.2*/. )/%42.'+&024& 5".:0"%0 )./.702/.. C()*+"&07(B SQL-*)0/.2*/ 7*=02 4*10/=.23 "04#*+3#* )./.702/*'. ?0/01 %4)*+35*'."%07 )./.702/ 4+01!02 *)/010+%23 ('()*+"%23 4'&5('."%0 )./.702/.). D)/010+0"%0 )./.702/. 5.#+,:.024& ' !#.5."%% 2%)*' 1+& 5".:0"%& (E-2%)) % 1+& )*+& 2.>+%$( (SQL-2%)), . 2.#=0 !#.5."%0 >!80/., ' #*2*/*7 >!102 4*10/=.234& 5".:0"%0 )./.702/., %+% "*70/. )./.702/. - 1+& 0;* )*4+01!,-0;* 5.)/*4. '* '/07& '()*+"0"%&. D)/010+0"%0 )./.702/. /0.+%5!024& 8!"#$%0B SQLBindParameter. !"#$%& SQLBindParameter %7002 4+01!,-00 8*/7.+3"*0 *)%4."%0: SQLRETURN SQLBindParameter( SQLHSTMT StatementHandle,

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SQLUSMALLINT ParameterNumber, SQLSMALLINT InputOutputType, SQLSMALLINT ValueType, SQLSMALLINT ParameterType, SQLUINTEGER ColumnSize, SQLSMALLINT DecimalDigits, SQLPOINTER ParameterValuePtr, SQLINTEGER BufferLength, SQLINTEGER * StrLen_or_IndPtr); ?./.702/ StatementHandle ([Input]) !#.5('.02 104#/%)2*/ *)0/.2*/., )./.702/ ParameterNumber ([Input]) 5.1.02 "*70/ )./.702/. ()* 70/0 %6 '6*=10"%& ' SQL-*)0/.2*/), ".:%".& 4 1. ?./.702/ InputOutputType ([Input]) *)/010+&02 2%) )./.702/.. ?./.702/ ValueType ([Input]) *)/010+&02 2%) 5".:0"%& )0/070""*B (E-2%)), %5 #*2*/*B >!102 %5'+0#.234& 5".:0"%0, )0/01.'.07*0 ' >.5! 1.""(6, . )./.702/ ParameterType ([Input]) !#.5('.02 2%) )./.702/. (SQL-2%) )*+& 2.>+%$( >.5( 1.""(6). ?./.702/ ColumnSize ([Input]) *)/010+&02 /.570/ 42*+>$. %+% !#.5('.02 '(/.=0"%0 4**2'0242'!,-00 7./#0/! )./.702/., . )./.702/ DecimalDigits ([Input]) *)/010+&02 #*+%:042'* 104&2%:"(6 5".#*' ' 42*+>$0 %+% !#.5('.02 '(/.=0"%0 4**2'0242'!,-00 7./#0/! )./.702/.. ?*+!:%23 /.570/ 42*+>$. % #*+%:042'* 104&2%:"(6 5".#*' ' 42*+>$0 7*="* )/% )*7*-% 8!"#$%% ODBC API SQLDescribeCol. ?./.702/ ParameterValuePtr ([Deferred Input]) &'+&024& !#.5.20+07 ". >!80/ 1+& 1.""(6, )0/01.'.07(6 ' #.:042'0 )./.702/.. F+%". G2*;* >!80/. *)/010+&024& )./.702/*7 BufferLength ([Input/Output]), . !#.5.20+3 ". >!80/ 1+& 1+%"( )./.702/. 5.1.024& )./.702/*7 StrLen_or_IndPtr ([Deferred Input]). H4+% )0/01 '()*+"0"%07 8!"#$%% SQLExecDirect, 5".:0"%& )./.702/*', %4)*+35!07(6 ' 5.)/*40 "0 )0/01."( ". 40/'0/, 2* 8!"#$%% '*5'/.-.02 #*1

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*2'02. SQL_NEED_DATA. F+& )0/01.:% )./.702/*' ' )/%+*=0"%% 7*;!2 %4)*+35*'.234& 8!"#$%% SQLParamData % SQLPutData. !"#$%& SQLParamData %4)*+35!024& 4*'7042"* 4 8!"#$%0B SQLPutData 1+& )0/01.:% 5".:0"%B )./.702/*' '* '/07& '()*+"0"%&. H4+% 8!"#$%% SQLParamData '*5'/.-.02 5".:0"%0 SQL_NEED_DATA, 2* *". 2.#=0 '*5'/.-.02 % "*70/ )./.702/., 1+& #*2*/*;* 4+01!02 ''042% 5".:0"%0. ?0/01.:. 5".:0"%& )./.702/. '()*+"&024& 8!"#$%0B SQLPutData. I70"*'.""(0 )./.702/( 7*;!2 %4)*+35*'.234& ' 2*7 4+!:.0, #*;1. ' SQL*)0/.2*/0 '()*+"&024& '(5*' 6/."%7*B )/*$01!/(. I70"*'.""(0 )./.702/( %10"2%8%$%/!,24& ' 4**2'0242'%% 4 %6 %70".7%, . "0 )* )*/&1#! %6 /.4)*+*=0"%& (#.# )/% )*5%$%*""(6 )./.702/.6). I70"*'.""(0 )./.702/(, 2.#=0 #.# % )*5%$%*""(0 )./.702/( 4'&5('.,24& 4 )0/070""*B )*4/0142'*7 '(5*'. 8!"#$%% ODBC API SQLBindParameter, "* %10"2%8%$%/!,24& )*4/0142'*7 )*+& SQL_DESC_NAME IPD-104#/%)2*/. (Implementation Parameter Descriptor). I70"*'.""(0 )./.702/( 2.#=0 7*;!2 >(23 4'&5."( 4 )0/070""*B )/% '(5*'0 8!"#$%% SQLSetDescField %+% 8!"#$%% SQLSetDescRec. F.+00 )/%'010" )/%70/ %4)*+35*'."%& %70"*'.""(6 )./.702/*', %4)*+35!07(6 )/% '(5*'0 )/01'./%20+3"* 4*51.""*B 6/."%7*B )/*$01!/( t1 4 1'!7& )./.702/.7% (CREATE PROCEDURE t1 @f_id int = 10, @f2 char(30) AS ). ?0/'(B )./.702/ )/*$01!/( %7002 5".:0"%0 )* !7*+:."%, /.'"*0 10, . '2*/*B )./.702/ @f2 *>&5.20+3"* 1*+=0" >(23 !#.5." )/% '(5*'0 )/*$01!/(. ?./.702/ @f2 G2* 1%".7%:04#%B )./.702/, ".5('.07(B %70"*'.""(7 )./.702/*7. // 7)D-(%(.)$,'(& $?2)$, @.,'(D)B -.)1&65.? SQLPrepare(hstmt, "{call t1(?)}", SQL_NTS); // C,-)%'&'(& 2,-(4( 1 6%# IPD-6&4*.(-+)., SQLBindParameter(hstmt, 1, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR,

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30, 0, sz_Fl2, 0, &cbValue); // E)%5A&'(& IPD-6&4*.(-+)., ( )-.&6&%&'(& -)%&B // SQL_DESC_NAMED ( SQL_DESC_UNNAMED 6%# 2,-(4( #1. SQLGetStmtAttr(hstmt, SQL_ATTR_IMP_PARAM_DESC, &hIpd, 0, 0); SQLSetDescField(hIpd, 1, SQL_DESC_NAME, "@fl2", SQL_NTS); SQLSetDescField(hIpd, 1, SQL_DESC_UNNAMED, SQL_NAMED, 0); // F4%( -&.&D&'',# sz_Fl2 !?%, *)..&*+') // ('(1(,%(2(.)$,',, +) D)/') $?-)%'#+: // $?2)$ @.,'(D)B -.)1&65.? SQLExecute(hstmt);

./"(,"?/%70"0"%0 #!/4*/*' )*5'*+&02 )/%+*=0"%, '()*+"&23 '(>*/#! *1"*B %+% "04#*+3#%6 42/*# 5. *1"! *)0/.$%, %5'+0:0"%& 1.""(6. @.#=0 #!/4*/( )*110/=%'.,2 '*57*="*423 )/%70"0"%& *)0/.2*/*' UPDATE, INSERT % DELETE # 20#!-0B )*5%$%% #!/4*/.. F+& %4)*+35*'."%& #!/4*/. 4+01!02 !42."*'%23 4*01%"0"%0 4 >.5*B 1.""(6 % !42."*'%23 "!="(0 5".:0"%& .2/%>!2.7 *)0/.2*/., #*"2/*+%/!,-%7 )*'010"%0 #!/4*/.. F+& %4)*+35*'."%& #!/4*/. 2/0>!024& '()*+"%23 4+01!,-%0 10B42'%&: 1. J42."*'%23 .2/%>!2( #!/4*/., '(5'.' 8!"#$%, SQLSetStmtAttr. K2. 8!"#$%& )*5'*+&02 !42.".'+%'.23 4+01!,-%0 .2/%>!2( : SQL_ATTR_CURSOR_TYPE % SQL_ATTR_CONCURRENCY, %+% SQL_CURSOR_SCROLLABLE % SQL_CURSOR_SENSITIVITY.. 2. D)/010+%20 /.570/ /05!+32%/!,-0;* ".>*/., '(5'.' 8!"#$%, SQLSetStmtAttr 4 .2/%>!2*7 SQL_ATTR_ROW_ARRAY_SIZE.

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3. F+& 2*;* :2*>( %4)*+35*'.23 )*5%$%*"%/*'.""(B SQL-*)0/.2*/ 4 8/.5*B WHERE CURRENT OF 4+01!02 *)/010+%23 %7& #!/4*/., '(5'.' 8!"#$%, SQLSetCursorName. 4. F+& 4*51."%& /05!+32%/!,-0;* ".>*/. 4+01!02 '()*+"%23 SQL*)0/.2*/ SELECT, '(5'.' 8!"#$%, SQLExecute %+% 8!"#$%%, SQLExecDirect. 5. H4+% %7& #!/4*/. "0 >(+* )/01'./%20+3"* *)/010+0"*, "* 2/0>!024& %4)*+35*'.23 '*57*="*423 )/%70"0"%& )*5%$%*"%/*'.""*;* SQL*)0/.2*/. 4 8/.5*B WHERE CURRENT OF, 2* 4+01!02 4*51.23 %7& #!/4*/., '(5'.' 8!"#$%, SQLGetCursorName. 6. F+& )*+!:0"%& %"8*/7.$%% * #*+%:042'0 42*+>$*' ' 48*/7%/*'.""*7 /05!+32%/!,-07 ".>*/0 7*="* '(5'.23 8!"#$%, SQLNumResultCols. 7. D)/010+%20 4'&5('."%0 42*+>$*' /05!+32%/!,-0;* ".>*/. 4 >!80/*7, )/01".5".:0""*7 1+& %5'+0:0"%& 5".:0"%& 42*+>$. (*1"*B 42/*#% %+% 4/.5! ".>*/. 42/*#). 8. C()*+"%20 8!"#$%, ODBC API, '()*+"&,-!, %5'+0:0"%0 42/*# %5 /05!+32%/!,-0;* ".>*/. ' 4'&5.""(B >!80/ (%+% 8!"#$%, '()*+"&,-!, %5'+0:0"%0 )**:0/01"* #.=1*;* 42*+>$. ' !#.5('.07(B )./.702/*7 >!80/, 04+% "0 >(+* '()*+"0"* )/01'./%20+3"*;* 4'&5('."%&). 9. H4+% '()*+"&07(B SQL-*)0/.2*/ 4*42*&+ %5 "04#*+3#%6 *)0/.2*/*' SELECT, 2* 48*/7%/*'.""(B /05!+32%/!,-%B ".>*/ >!102 4*42*&23 %5 "04#*+3#%6 7"*=042'. F+& )0/06*1. # 4+01!,-07! 7"*=042'! (/05!+32%/!,-07! ".>*/!) %4)*+35!024& 8!"#$%& SQLMoreResults. C 2*7 4+!:.0, 04+% 4+01!,-00 7"*=042'* 4!-042'!02, 2* G2. 8!"#$%& '()*+"&02 )0/06*1 # "07! % '*5'/.-.02 #*1 *2'02. SQL_SUCCESS. H4+% '(>/."( '40 7"*=042'. 48*/7%/*'.""*;* /05!+32%/!,-0;* ".>*/., 2* 8!"#$%& '*5'/.-.02 #*1 *2'02. SQL_NO_DATA. 10. F+& *4'*>*=10"%& 104#/%)2*/. *)0/.2*/. '(5*'%20 8!"#$%, SQLFreeStmt. ?/% G2*7 1+& 2*;*, :2*>( *1"*'/070""* '()*+"%23 *4'*>*=10"%0 4'&5.""(6 4 1.""(7 *)0/.2*/*7 >!80/*',

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%4)*+35!07(6 1+& %5'+0:0"%& 5".:0"%B 42*+>$*', !42."*'%20 5".:0"%0 )./.702/. fOption /.'"(7 SQL_UNBIND. ?/%+*=0"%0, %4)*+35!,-00 8!"#$%% ODBC API !)/.'+&02 )*'010"%07 #!/4*/., !42.".'+%'.& .2/%>!2( *)0/.2*/.. L*="* %4)*+35*'.23 1'. /.5+%:"(6 4)*4*>. *)/010+0"%& 6./.#20/%42%# #!/4*/.: !"#$#%&'( !" #$%&'%(; !"#$#%&'( "')*+*,!* #$%&'%(. )%* !"#$#%#+&* '&!, -."/ ", 01210,#'/* 3.+-4&* SQLSetStmtAttr / 2+,5#+ ,'"&7.', SQL_ATTR_CURSOR_TYPE, - ' "18 &6##' '&! SQLUINTEGER & 6 9#' 2,$,0,'(/* /%#$.:;&6& 2+,5#+&*6&: SQL_CURSOR_FORWARD_ONLY – $+ +,!",0%#++18 -."/ "; SQL_CURSOR_STATIC /','&5#/-&8 -."/ ", !"#$#%*:;&8 5' &+3 "6,4&*, &20%#5#++,* 0 "#2.%('&".:;&8 +,7 " +# 7.$#' '",9,'( &26#+#+&# $,++1< 0 =), !" &2 >#$>&# ! /%# / 2$,+&* "#2.%('&".:;#? +,7 ",; SQL_CURSOR_KEYSET_DRIVEN – -."/ ", .!",0%*#618 -%:5 6. @,- 8 -."/ " ! 20 %*#' "0&$#'(" &26#+#+&# & .$,%#+&# /'" - 0 =), !" &2 >#$>&# ! /%# / 2$,+&* "#2.%('&".:;#? +,7 ",, + +# ' 7",9,#' / 2$,+&# + 01< /'" -. A %&5#/'0 /'" -, $%* - ' "1< / 2$,:'/* -%:5& .-,210,#'/* ,'"&7.' 6 SQL_ATTR_KEYSET_SIZE; SQL_CURSOR_DYNAMIC - $&+,6&5#/-&8 -."/ ", '",9,:;&8 &26#+#+&# $,++1< 0 =) ! /%# / 2$,+&* "#2.%('&".:;#? +,7 ",. B, &/! %(2.#618 '&! -."/ ", +,-%,$10,#' ?",+&5#+&# !"&6#+*#618 ODBC-$",80#". @,-, 6+ ?&# $",80#"1 +# ! $$#"9&0,:' 0 26 9+ /'( !"&6#+#+&* $&+,6&5#/- ? -."/ ", )%* !"#$#%#+&* ! 0#$#+&* -."/ ", 01210,#'/* 3.+-4&* SQLSetStmtAttr / 2+,5#+&*6& ,'"&7.' 0 SQL_ATTR_CURSOR_SCROLLABLE & SQL_ATTR_CURSOR_SENSITIVITY

-(.%(/' #( %(&"%*+*0*,,12 "%!0'3*,!4 /(. +(,,12

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C'"&7.' SQL_ATTR_CURSOR_SCROLLABLE .!",0%*#' "*%*5*6(*515 #$%&'%'5, &6##' '&! SQLUINTEGER & 6 9#' 2,$,0,'(/* /%#$.:;&6& $0.6* 2+,5#+&*6&: SQL_NONSCROLLABLE – !#"#6#;,#618 -."/ " "#,%&2.#'/* -,!" /' 8 $+ +,!",0%#++18 -."/ ". D"& 012 0# 0 !"&% 9#+&& 3.+-4&& SQLFetchScroll !,",6#'" FetchOrientation 6 9#' !"&+&6,'( ' %(- 2+,5#+&# SQL_FETCH_NEXT. SQL_SCROLLABLE – !#"#6#;,#618 -."/ ", ! $$#"9&0,:;&8 $0.+,!",0%#++18 !" /6 '" "#2.%('&".:;#? +,7 ",, , ',-9# !"*6.: 017 "-. /'" -. D#"#6#;,#61# -."/ "1 $%* &20%#5#+&* $,++1< &/! %(2.:' 3.+-4&: SQLFetchScroll. E/%& !" /' 8 $+ +,!",0%#++18 -."/ ", &/! %(2.#618 3.+-4 SQLFetch, ! 20 %*#' !#"#6#;,'(/* ' %(- 0 $+ 6 !"*6 6 +,!",0%#+&& & 01! %+*'( 017 "-. ' %(- $+ 8 /'" -& 2, $&+ 012 0 3.+-4&&, ' !#"#6#;,#618 -."/ " ! 20 %*#': 01! %+*'( 2, $&+ 012 0 3.+-4&& &20%#5#+&# 7 %## $+ 8 /'" -&; !#"#6#;,'(/* 0 $0.< +,!",0%#+&*< & +, %:7 # 5&/% /'" -; 01! %+*'( !"*6.: 017 "-. /'" -& &2 "#2.%('&".:;#? +,7 ", ! ## + 6#".. C'"&7.' SQL_ATTR_CURSOR_SENSITIVITY !"#$#%*#' 5.0/'0&'#%(+ /'( -."/ ", - &26#+#+&*6, 01! %+*#616 $".?&6& -."/ ",6&, &6##' '&! SQLUINTEGER & 6 9#' !"#$#%*'( "#9&61, 2,$,0,#61# /%#$.:;&6& 2+,5#+&*6&: SQL_UNSPECIFIED – +# !"#$#%#++18 -."/ ", !"& - ' " 6 &26#+#+&* 6 ?.' 71'( /$#%,+1 -,- 0&$&616&, ',- & +#0&$&616&, &%& 5,/'&5+ 0&$&616&. F' ' "#9&6 &/! %(2.#'/* ! .6 %5,+&:; SQL_INSENSITIVE – "#9&6 +#5.0/'0&'#%(+ ? -."/ ",, !"& - ' " 6 0/# -."/ "1 ! -,210,:' "#2.%('&".:;&8 +,7 " 7#2 '",9#+&* &26#+#+&8, 01! %+#++1< $%* $".?&< -."/ " 0. B#5./'0&'#%(+18 -."/ " *0%*#'/* -."/ " 6 "' %(- 5'#+&#". G+

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/ '0#'/'0.#' /','&5#/- 6. '&!. -."/ ", / ." 0+#6 &2 %*4&& "' %(- 5'#+&#"; SQL_SENSITIVE – "#9&6 5.0/'0&'#%(+ ? -."/ ",, !"& - ' " 6 -."/ "1 "0&$*'" 0/# &26#+#+&*, 01! %+#++1# $".?&6& -."/ ",6&. H.+-4&* SQLSetStmtAttr ! 20 %*#' ./',+ 0&'( 2+,5#+&* ,'"&7.' 0 !#",' ", & &6##' /%#$.:;## 3 "6,%(+ # !&/,+&#: SQLRETURN SQLSetStmtAttr( SQLHSTMT StatementHandle, SQLINTEGER Attribute, SQLPOINTER ValuePtr, SQLINTEGER StringLength); D,",6#'" StatementHandle ([Input]) .-,210,#' $#/-"&!' " !#",' ",. D,",6#'" Attribute ([Input]) !"#$#%*#' ,'"&7.', 2+,5#+&# - ' " ? ./',+,0%&0,#'/*, , !,",6#'" ValuePtr ([Input]) *0%*#'/* .-,2,'#%#6 +, 2+,5#+&#, +,2+,5,#6 # ,'"&7.'. Attribute. D,",6#'" StringLength ([Input]) 2,0&/&' ' '&!, 2+,5#+&*. !#"#$,0,#6 ? !,",6#'" 6 ValuePtr & ' 0&$, ,'"&7.',, & 6 9#' / $#"9,'( $%&+. /'" -&, &?+ "&" 0,'(/* &%& .-,210,'(/* - +/',+',6& ',-&6&, -,- SQL_NTS, SQL_IS_POINTER.

!"#$%&##'" ()*+$*' A."/ ", $%* - ' " ? !"#$#%#+ &6* -."/ ",, +,210,#'/* !5*,')(,,15 #$%&'%'5. C// 4&&" 0,'( &6* -."/ ", / ,-'&0+16 $#/-"&!' " 6 !#",' ", 6 9+ 012 0 6 3.+-4&& SQLSetCursorName. I ' 6 /%.5,# #/%& J', 3.+-4&* +# 01210,#'/* *0+16 7",2 6, ' $",80#" !"& +# 7< $&6 /'& 6 9#' ?#+#"&" 0,'( &6* -."/ ", !"& 01! %+#+&& SQL- !#",' ",.

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K%#$.:;&8 !"&6#" &%%:/'"&".#' !"&6#+#+&# 3.+-4&& SQLSetCursorName $%* ! %.5#+&* &6#+& -."/ ", & 01! %+#+&* 2,'#6 ! 2&4& +&" 0,++ ? SQL- !#",' ", UPDATE. #define N_LEN 24 #define PH_LEN 7 SQLHSTMT

hstmtS;

//

SQLHSTMT

hstmtU;

//

SQLRETURN SQLHDBC SQLCHAR SQLINTEGER

retcode; hdbc; szN[N_LEN], szPh[PH_LEN]; cbN, cbPh;

!"#$%&'($ (&!$)'($) // (*+, (&!$)'($) SELECT) !"#$%&'($ (&!$)'($) // (*+, (&!$)'($) UPDATE)

/* -(.*)!/ *!"#$%&'($ (&!$)'($) % (&$!*!+,!/ %/, #0$"($) */ SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmtS); SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmtU); SQLSetCursorName(hstmtS, "C1", SQL_NTS); /* 12&(+3,!/ SQL-(&!$)'($ SELECT *+, 4($/%$(5)3%, $!.0+6'%$078!9( 3):($) % "5,.25)!/ !9( "'(+:;2 " +(#)+632/% :04!$)/% *+, %.5+!
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81

/* 12:%$)!/ "'$(#% $!.0+6'%$078!9( 3):($) *( '!= &($, &(#) 3! 3)>*!/ "'$(#0 "?3'%&(5 ?." */ do retcode = SQLFetch(hstmtS); while ((retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) && (strcmp(szN, "?3'%&(5 ?.") != 0)); /* 12&(+3,!/ &(.%;%(3%$(5)332> UPDATE *+, '!#08!> 52:$)33(> "'$(#% %/!3(5)33(9( #0$"($) */ if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) { SQLExecDirect(hstmtU, "UPDATE Tbl2 SET PH=\"1373322\" WHERE CURRENT OF C1", SQL_NTS); }

,-$.#&/ %'0$*(& 1&##'2 D"& &/! %(2 0,+&& !#"#6#;,#6 ? -."/ ", $%* &26#+#+&* '#-.;#8 ! 2&4&& -."/ ", & 017 "-& /'" - &/! %(2.#'/* 3.+-4&* SQLFetchScroll. F', 3.+-4&* ! 20 %*#' "#,%&2 010,'(: ' ,'&! *07,14 &#%'00!,8 - !#"#6#;#+&# ! "#2.%('&".:;#6. +,7 ". 0 $0.< +,!",0%#+&*< & +, %:7 # 5&/% /'" -; (/&'09 ,14 &#%'00!,8 – !#"#6#;#+&# +, !#"0.: &%& ! /%#$+:: /'" -., &%& /'" -. / .-,2,++16 + 6#" 6. H.+-4&* SQLFetchScroll 01! %+*#' 017 "-. ,(/'%( & %'# &2 /3 "6&" 0,++ ? %*.$07 !%$96*8' ,(/'%( & 0 20",;,#' $,++1# $%* 0/#< /0*2,++1< /' %74 0. B,7 "1 /'" - (rowset) 6 ?.' 71'( .-,2,+1 -,- 5#"#2 ,7/ %:'+ # &%& '+ /&'#%(+ # ! 2&4& +&" 0,+&#, ',- & ! /"#$/'0 6

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2,-%,$ -(bookmark). I 0#"/&& ODBC 2.x $%* J'&< 4#%#8 &/! %(2 0,%,/( 3.+-4&* SQLExtendedFetch. H.+-4&* SQLFetchScroll &6##' /%#$.:;## 3 "6,%(+ # !&/,+&#: SQLRETURN SQLFetchScroll( SQLHSTMT StatementHandle, SQLSMALLINT FetchOrientation, SQLINTEGER FetchOffset); D,",6#'" StatementHandle ([Input]) .-,210,#' $#/-"&!' " !#",' ",. D#"#6#;#+&# -."/ ", !"#$#%*#'/* '&! 6 017 "-&, .-,210,#'/* !,",6#'" 6 FetchOrientation ([Input]) & 6 9#' !"&+&6,'( /%#$.:;&# 2+,5#+&*: SQL_FETCH_NEXT – !#"#< $ - /%#$.:;#8 /'" -# ( '+ /&'#%(+18 /-" %%&+?); SQL_FETCH_PRIOR – !#"#< $ - !"#$1$.;#8 /'" -# ( '+ /&'#%(+18 /-" %%&+?); SQL_FETCH_FIRST – !#"#< $ - !#"0 8 /'" -# (,7/ %:'+18 /-" %%&+?); SQL_FETCH_LAST– !#"#< $ - ! /%#$+#8 /'" -# (,7/ %:'+18 /-" %%&+?); SQL_FETCH_ABSOLUTE – !#"#< $ - /'" -# / .-,2,++16 + 6#" 6 (,7/ %:'+18 /-" %%&+?); SQL_FETCH_RELATIVE– !#"#6#;#+&# 0!#"#$ &%& +,2,$ +, .-,2,++ # - %&5#/'0 /'" -# ( '+ /&'#%(+18 /-" %%&+?); SQL_FETCH_BOOKMARK – !#"#< $ - /'" -# ! 2,-%,$-# (,7/ %:'+18 /-" %%&+?). A %&5#/'0 /'" -, +, - ' "1# 01! %+*#'/* !#"#6#;#+&# -."/ ", & + 6#" ,7/ %:'+ 8 ! 2&4&&, .-,210,#'/* !,",6#'" 6 FetchOffset ([Input]). D,",6#'"1 FetchOrientation & FetchOffset 3.+-4&& SQLFetchScroll / 06#/'+ !"#$#%*:' +,7 " /'" -, - ' "18 7.$#' &20%#5#+ &2 "#2.%('&".:;#? +,7 ",.

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L#<,+&26 017 "-& /'" - 3.+-4 SQLFetchScroll ',-9# ! 20 %*#' "#,%&2 010,'( ! 2&4& +&" 0,+&# ! ,7/ %:'+ 6. .-,2,++ 6. + 6#"., ! 2&4& +&" 0,+&# / /6#;#+ +, 2,$,++ # 5&/% /'" -. &%& ! 2&4& +&" 0,+&# ! /"#$/'0 6 2,-%,$-&. F'& 6#<,+&261 ' 7",9#+1 +, /%#$.:;#8 /<#6#.

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H.+-4&* SQLFetchScroll 01! %+*#' ! 2&4& +&" 0,+&# -."/ ", +, .-,2,++.: /'" -. "#2.%('&".:;#? +,7 ", & 0 20",;,#' +,7 " /'" -, +,5&+,* / ./',+ 0%#++ 8 ! 2&4&& -."/ ",. D /%# ' ? , -,- +,7 " /'" - &20%#5#+, $%* ! 2&4& +&" 0,+&* 0 +#6 - +-"#'+ 8 /'" -& &%& &20%#5#+&* /'" -& 6 9+ &/! %(2 0,'( 3.+-4&: SQLSetPos. D"& &/! %(2 0,+&& 7% 5+ ? -."/ ", 2, $&+ 012 0 3.+-4&& 6 9#' 0 20",;,'(/* +#/- %(- /'" -. D J' 6. / -,9$16 /' %74 6 $ %9+,

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/0*210,'(/* +# !" /' !#"#6#++,* / '0#'/'0.:;#? '&!,, , 6,//&0. @,- 8 6,//&0 715+ +,210,#'/* /$:*%'5 ,(/'%( & %'# (rowset buffer). I 26 9+ $0, '&!, /0*210,+&*: &);.1)(,!* "' & '0/<$ (column-wise binding), !"& - ' " 6 / -,9$16 /' %74 6 /0*210,#'/* '$#%(+18 6,//&0 (/'".-'.", $,++1<, / $#"9,;,* J%#6#+'1 $+ ? '&!,); &);.1)(,!* "' & %'#* (row-wise binding), !"& - ' " 6 / -,9$ 8 /'" - 8 /0*210,#'/* '$#%(+18 6,//&0 (/'".-'.", $,++1<, '&!1 J%#6#+' 0 - ' " 8 / '0#'/'0.:' '&!,6 /' %74 0 /'" -& +,7 ", $,++1<). )%* 01! %+#+&* %:7 ? '&!, /0*210,+&* &/! %(2.#'/* 3.+-4&* ODBC API SQLBindCol. D"& J' 6 '&! /0*210,+&* !"#$#%*#'/* ,'"&7.' 6 SQL_ATTR_ROW_BIND_TYPE. I /%.5,# &/! %(2 0,+&* 7% 5+ ? -."/ ", / /0*210,+ ! /'" -# &%& ! /' %74. 3.+-4&& SQLBindCol 0 -,5#/'0# !,",6#'", 06#/' ,$"#/, !" /' 8 !#"#6#++ 8 !#"#$,#'/* ,$"#/ 6,//&0,. D"& &/! %(2 0,+&& /0*210,+&* ! /' %74. / -,9$16 /' %74 6 6 9#' 71'( /0*2,+ ' $+ ? $ '"#< 6,//&0 0: !#"018 6,//&0 – $%* &20%#-,#61< 2+,5#+&8, 0' " 8 – $%* $%&+1/ &+$&-,' ", 7.3#" 0, '"#'&8 – $%* &+$&-,' ", 7.3#" 0 (#/%& &+$&-,' "1 & $%&+, <",+*'/* ! '$#%(+ /'&). A,9$18 6,//&0 $ %9#+ / $#"9,'( 5&/% J%#6#+' 0 ",0+ # 5&/%. /'" - 0 &20%#-,#6 6 +,7 "# /'" -. K%#$.:;&8 !"&6#" &%%:/'"&".#' !"&6#+#+&# /0*210,+&* ! /' %74,6 $%* +,7 ", /'" -, / /' *;#? &2 $+ ? /' %74,. #define ROW_ARRAY_SIZE 30

SQLUINTEGER SQLINTEGER SQLUSMALLINT

// @(+-5( "'$(# // 5 3):($! "'$(#

ID1Array[ROW_ARRAY_SIZE], NumRowsFetched; ID1IndArray[ROW_ARRAY_SIZE]; RowStatusArray[ROW_ARRAY_SIZE], i;

-(.%(/' #( %(&"%*+*0*,,12 "%!0'3*,!4 /(. +(,,12 SQLRETURN SQLHSTMT

rc; hstmt;

// A"')3)5+%5)!/ )'$%:0' (&!$)'($) // SQL_ATTR_ROW_BIND_TYPE *+, %"&(+6.(5)3%, "5,.25)3%, // &( "'(+:;)/ SQLSetStmtAttr(hstmt, SQL_ATTR_ROW_BIND_TYPE, SQL_BIND_BY_COLUMN, 0); // B)./!$ 3):($) "'$(# .)*)!/ )'$%:0'(/ (&!$)'($) // SQL_ATTR_ROW_ARRAY_SIZE SQLSetStmtAttr(hstmt, SQL_ATTR_ROW_ARRAY_SIZE, ROW_ARRAY_SIZE, 0); // A"')3)5+%5)!/ )'$%:0' (&!$)'($) // SQL_ATTR_ROW_STATUS_PTR *+, (&$!*!+!3%, /)""%5) // "("'(,3%> "'$(# SQLSetStmtAttr(hstmt, SQL_ATTR_ROW_STATUS_PTR, RowStatusArray, 0); // A"')3)5+%5)!/ )'$%:0' (&!$)'($) // SQL_ATTR_ROWS_FETCHED_PTR *+, 0#).)3%, 3) // cRowsFetched SQLSetStmtAttr(hstmt, SQL_ATTR_ROWS_FETCHED_PTR, &NumRowsFetched, 0); // -5,.25)!/ /)""%5 "( "'(+:;(/ ID1 SQLBindCol(hstmt, 1, SQL_C_ULONG, ID1Array, 0, ID1IndArray); // 12&(+3,!/ SQL-(&!$)'($ SELECT *+, "(.*)3%, // $!.0+6'%$078!9( 3):($) SQLExecDirect(hstmt, "SELECT ID1 FROM TBL1", SQL_NTS);

86

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87

// 12&(+3,!/ :+(<307 52:($#0 %. $!.0+6'%$078!9( 3):($) // 1 &!$!/!33(> NumRowsFetched 5(.5$)8)!'", <%"+( // 5 *!>"'5%'!+63("'% 52:$)332= "'$(# while ((rc = SQLFetchScroll(hstmt,SQL_FETCH_NEXT,0)) != SQL_NO_DATA) { for (i = 0; i < NumRowsFetched; i++) { // C'(:$)D)!/ '(+6#( 0"&!E3( %.5+!
D"& &/! %(2 0,+&& /0*210,+&* ! /'" -,6 !"#$#%*#'/* /'".-'.",, / $#"9,;,* ' $+ ? $ '"#< J%#6#+' 0 $%* -,9$ ? /' %74, &20%#-,#61< $,++1<. D#"018 J%#6#+' !"#$+,2+,5,#'/* $%* &20%#-,#61< $,++1<, 0' " 8 – $%* $%&+1 / &+$&-,' ", 7.3#",, '"#'&8 – $%* &+$&-,' ", 7.3#", !"& ",2$#%(+ 6 / <",+#+&& 2+,5#+&8 $%&+1 & &+$&-,' ",. L,//&0 ',-&< /'".-'." $ %9#+ / $#"9,'( - %&5#/'0 J%#6#+' 0 ",0+ # 5&/%. /'" - 0 &20%#-,#6 6 +,7 "# /'" -. K%#$.:;&8 !"&6#" &%%:/'"&".#' !"&6#+#+&# /0*210,+&* ! /'" -,6 $%* +,7 ", /'" -, / /' *;#? &2 $0.< /' %74 0.

-(.%(/' #( %(&"%*+*0*,,12 "%!0'3*,!4 /(. +(,,12

#define ROW_ARRAY_SIZE 30 // C&$!*!+,!/ "'$0#'0$0 AR_INFO % "(.*)!/ /)""%5 // "'$0#'0$, "(*!$D)8%> 30 G+!/!3'(5 typedef struct { SQLUINTEGER F1; // +, .3)
NumRowsFetched; RowStatusArray[ROW_ARRAY_SIZE], i; rc; hstmt;

// C&$!*!+,!/ $)./!$ "'$0#'0$2, %"&(+6.0, )'$%:0' (&!$)'($) SQL_ATTR_ROW_BIND_TYPE, % (*3(5$!/!33( 0"')3)5+%5)!/ '%& "5,.25)3%, &( "'$(#)/ SQLSetStmtAttr(hstmt, SQL_ATTR_ROW_BIND_TYPE, sizeof(AR_INFO), 0); // I"&(+6.0, )'$%:0' (&!$)'($) SQL_ATTR_ROW_ARRAY_SIZE // 0"')3)5+%5)!/ #(+%
88

-(.%(/' #( %(&"%*+*0*,,12 "%!0'3*,!4 /(. +(,,12 // A"')3)5+%5)!/ )'$%:0' (&!$)'($) // SQL_ATTR_ROWS_FETCHED_PTR *+, 0#).)3%, 3) // NumRowsFetched SQLSetStmtAttr(hstmt, SQL_ATTR_ROWS_FETCHED_PTR, &NumRowsFetched, 0); // -5,.25)!/ &(+, "'$0#'0$2 &!$5(9( G+!/!3') /)""%5) // "( "'(+:;)/% ID1, Sal % Status SQLBindCol(hstmt, 1, SQL_C_ULONG, &TBL_Array[0].F1, 0, &TBL_Array[0].F1Ind); SQLBindCol(hstmt, 2, SQL_C_CHAR, TBL_Array[0].F2, sizeof(TBL_Array[0].F2), &TBL_Array[0].F2LenOrInd); // 12&(+3,!/ SQL-(&!$)'($ SELECT *+, 4($/%$(5)3%, // $!.0+6'%$078!9( 3):($) SQLExecDirect(hstmt, "SELECT F1, F2 FROM TBL1", SQL_NTS); // I"&(+6.0, :+(<32> #0$"($ %.5+!#)!/ 0"')3(5+!33(! <%"+( "'(# while ((rc = SQLFetchScroll(hstmt,SQL_FETCH_NEXT,0)) != SQL_NO_DATA) { // J!$!/!33), NumRowsFetched "(*!$D%' <%"+( // 5 *!>"'5%'!+63("'% %.5+!
89

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90

else std::cout<< TBL_Array[i].F1; if (TBL_Array[i].F2LenOrInd == SQL_NULL_DATA) std::cout<< " NULL "; else std::cout<< TBL_Array[i].F2; } } } // F)#$25)!/ #0$"($) SQLCloseCursor(hstmt);

!"# 5. $!%#&'(") *+#,!&&-.- +-/0*1#. 2&0!34!5/ ODBC. 304"(5#&/

!"#$% OLE DB

OLE DB !"#$%&'()"% $*+*, -&+*! COM-.-%"!/",$*' (Component Object Model), 0*%*!1" !"#*$%&'()2% !.(*3"-.2-0(."-%4 4-./.5.!*'&--1, #*$%4 0 !&6(.7-18 .$%*7-.0&8 #&--19. :*3-* $0&6&%;, 7%* OLE DB <%* 8"%*# #*$%4 & 0 (2+18 #&--18 7"!"6 $%&-#&!%-1" COM-.-%"!/",$1, '-" 6&'.$.8*$%. *% %. & #&--19 . 8"$%& .9 !&$ *(*3"-.). = 0&7"$%'" #&--19 8*>4% '1$%4 &%; +&61 #&--19, !*$%1" #*048"-%1, %&+(.51 Excel . (2+1" #!4>." .$%*7-.0. #&--19. = *%(.7." *% #*$%4 &, !"#*$%&'()"8*>* *$!"#$%'*8 #!&,'"!*' OBDC, OLE DB *6'*()"% !"&(.6*'1'&%; #*$%4 0 .$%*7-.0&8 #&--19, 0&0 $ !.8"-"-."8 )610& SQL (0 SQL-$"!'"!&8), %&0 . 0 (2+18 #!4>.8 !*.6'*(;-18 .$%*7-.0&8 #&--19. ?!"#$%'&, !"#*$%&'()2@." #*$%4 0 .$%*7-.04 #&--19 $ .$ *(;6*'&-."8 %"9-*(*>.. OLE DB. -&61'&2%$) OLE DB !"#$%&'!$(). A!*>!&8810(."-%1, .$ *(;642@." #() #*$%4 & OLE DB !*'&,#"!1, -&61'&2%$) "*!'+)*',-() &$../0.

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&'(#)*+,-

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? "5./.0&5.) OLE DB * .$1'&"% -&+*! .-%"!/",$*', !"&(.64"819 *+D"0%&8. OLE DB. G&3#1, *+D"0%-1, %. * !"#"("- 0&0 -&+*! .-%"!/",$*'. ? "5./.0&5.) OLE DB * !"#"()"% -&+*! .-%"!/",$*' +&6*'*>* 4!*'-), 0*%*!1" #*(3-1 !"&(.6*'1'&%;$) (2+18. OLE DB !*'&,#"!&8.. = +&6*'42 8*#"(; OLE DB '9*#)% $("#42@." *+D"0%1: *+D"0% DataSource (.$%*7-.0 #&--19), .$ *(;64"81, #() $*"#.-"-.) $ .$%*7-.0*8 #&--19 . $*6#&-.) *#-*>* .(. -"$0*(;0.9 $"&-$*'. H%*% *+D"0% 4 !&'()"% $*"#.-"-."8, .$ *(;64"% .-/*!8&5.2 * *(-*8*7.)9 . &4%"-%./.0&5.. *(;6*'&%"(). *+D"0% Session ($"&-$) 4 !&'()"% '6&.8*#",$%'."8 $ .$%*7-.0*8 #&--19 – '1 *(-)"% 6& !*$1 . $*6#&"% !"64(;%.!42@." -&+*!1.

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!"#$% DataSource !" IDBInfo !" IDBInitialize !" IDBCreateSession # pIDBCreateSession->CreateSession # !"#$% Session !" IOpenRowSet # pIOpenRowset->OpenRowset # !"#$% Rowset !" IAccessor !" IRowsetInfo !" IColumnsInfo !" IRowset

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93

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1$2!$+"*3$ !$4 !'&','../0 !),"5'.)% +$2 &$../0 [mandatory] [mandatory] [optional] [optional] [optional] [optional] [optional] [optional]

interface interface interface interface interface interface interface interface

IDBProperties; IPersist; IConnectionPointContainer; IDBAsynchStatus; IDBDataSourceAdmin; IDBInfo; IPersistFile; ISupportErrorInfo;

} J() *+D"0%& $"&-$ $ "5./.5.!*'&- $("#42@., -&+*! .-%"!/",$*': CoType TSession { [mandatory] interface IGetDataSource; [mandatory] interface IOpenRowset; // !"#$%&' // %$(!)$ #$%%*+ [mandatory] interface ISessionProperties; [optional] interface IAlterIndex; [optional] interface IAlterTable; [optional] interface IBindResource; [optional] interface ICreateRow; [optional] interface IDBCreateCommand; [optional] interface IDBSchemaRowset; [optional] interface IIndexDefinition; [optional] interface ISupportErrorInfo; [optional] interface ITableCreation; [optional] interface ITableDefinition; // ,-. // /!"#$%&. 0$(-&1* [optional] interface ITableDefinitionWithConstraints;

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interface interface interface interface

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ITransaction; ITransactionJoin; ITransactionLocal; ITransactionObject;

} J() *+D"0%& !"64(;%.!42@., -&+*! $ "5./.5.!*'&- $("#42@., -&+*! .-%"!/",$*': CoType TRowset { [mandatory] interface IAccessor; [mandatory] interface IColumnsInfo; [mandatory] interface IConvertType; [mandatory] interface IRowset;// 2!/-'#!3$0'-4%!' // 50'%&' 0$(-&1* [mandatory] interface IRowsetInfo; [optional] interface IChapteredRowset; [optional] interface IColumnsInfo2; [optional] interface IColumnsRowset; [optional] interface IConnectionPointContainer; [optional] interface IDBAsynchStatus; [optional] interface IGetRow; [optional] interface IRowsetChange; // ,-. // 6#$-'%&., &"7'%'%&. & #!($3-'%&. // /0)!8 3 %$(!) #$%%*+ [optional] interface IRowsetChapterMember; [optional] interface IRowsetCurrentIndex; [optional] interface IRowsetFind; [optional] interface IRowsetIdentity; [optional] interface IRowsetIndex;

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[optional] interface IRowsetLocate; // 2).7!' // 9!"&"&!%&)!3$%&' %$ "$9&/4 %$(!)$ #$%%*+ [optional] interface IRowsetRefresh; // ,-. // !(%!3-'%&. #$%%*+ 3 /!"#$%%!7 %$(!)' #$%%*+ [optional] interface IRowsetScroll; // 2!##'):8$ // /8)!--&%;$ 9! %$(!)6 #$%%*+ [optional] interface IRowsetUpdate; [optional] interface IRowsetView; [optional] interface ISupportErrorInfo; [optional] interface IRowsetBookmark; } =$" *+D"0%1 *+D"0%-*>* %. & Rowset #*(3-1 !"&(.6*'1'&%; $("#42@." .-%"!/",$1: .-%"!/",$ IRowset, .$ *(;64"81, #() .6'("7"-.) $%!*0; .-%"!/",$ IAccessor, .$ *(;64"81, #() * !"#"("-.) $')61'&-.); .-%"!/",$ IColumnsInfo, !"#*$%&'()2@., .-/*!8&5.2 * $%*(+5&9 !"64(;%.!42@">* -&+*!&; .-%"!/",$ IRowsetInfo, !"#*$%&'()2@., .-/*!8&5.2 * $&8*8 !"64(;%.!42@"8 -&+*!"; .-%"!/",$ IConvertType, !"#*$%&'()2@., .-/*!8&5.2 * !"*+!&6*'&-.. %. *' #&--19, *##"!3.'&"819 ' !"64(;%.!42@"8 -&+*!". A!. !"&(.6&5.. #*$%4 & 0 LJ *$!"#$%'*8 OLE DB !*'&,#"!& $-&7&(& $("#4"% $*6#&%; *+D"0% #&--19 . 4$%&-*'.%; $*"#.-"-." $ +&6*, #&--19. J&("" -"*+9*#.8* $*6#&%; *+D"0% $"&-$. F %*(;0* *%*8 8*3-* $*6#&'&%; !"64(;%.!42@., -&+*!. :"9&-.68 $*6#&-.) *+D"0%& $"&-$ !.'"#"- -& $("#42@", $9"8". CoCreateInstanse ! DSO

IDBCreateSession ! Session

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M"64(;%.!42@., -&+*! 8*3"% +1%; $*6#&- *#-.8 .6 $("#[email protected] $ *$*+*': J() *+D"0%& $"&-$ '161'&"%$) 8"%*# IOpenRowset::OpenRowset, '1 *(-)2@., -" *$!"#$%'"--*" $*6#&-." !"64(;%.!42@">* -&+*!& (.-%"!/",$ IOpenRowset #*(3"*##"!3.'&%;$) (2+18 !*'&,#"!*8); J() *+D"0%& $"&-$ '161'&"%$) 8"%*# IDBCreateCommand::CreateCommand, $*6#&2@., *+D"0% Command. J&("" #() *+D"0%& 0*8&-#& '161'&"%$) 8"%*# ICommand::Execute. ( !. .$ *(;6*'&-.. .-%"!/",$& IMultipleResults 8*3-* !&+*%&%; $ -"$0*(;0.8. !"64(;%[email protected]. -&+*!&8.); =161'&"%$) *#..6 $("#[email protected] 8"%*#*' IColumnsRowset::GetColumnsRowset, IDBSchemaRowset::GetRowset, IViewRowset::OpenViewRowset .(. ISourcesRowset::GetSourcesRowset. N%*+1 !"64(;%.!42@., -&+*!, 9!&-.81, -& $"!'"!", 8*3-* +1(* .$ *(;6*'&%;, -"*+9*#.8* '1 *(-.%; $')61'&-." . .6'("7"-." #&--19. J() <%*>* $("#4"% * !"#"(.%; $%!40%4!1 %. & DBBINDING, * .$1'&2@." $%*(+51 . $*6#&%; &0$"$$*!. J&("" #() *(47"-.) $%!*0 !"64(;%.!42@">* -&+*!& 8*3-* .$ *(;6*'&%; !&6(.7-1" 8"%*#1, '0(27&) $("#42@.": IRowset::GetNextRows; IRowsetLocate::GetRowsByBookMarks; IRowsetLocate::GetRowAt; IRowsetScroll:: GetRowAtRatio. = 6&'"!C"-." #() 6& .$. #&--19 ' $%!40%4!4, * !"#"("--42 &0$"$$*!*8 '161'&"%$) 8"%*# IRowset::GetData. J() *$'*+*3#"-.) $%!*0 *$(" .9 *+!&+*%0. $("#4"% '16'&%; 8"%*# IRowset::ReleaseRows. A*$(" !*$8*%!& '$">* !"64(;%.!42@">* -&+*!& $("#4"% %&03" *$'*+*#.%; &0$"$$*!, '16'&' 8"%*# IRowset::ReleaseAccessor, . *$'*+*#.%; $&8 !"64(;%.!42@., -&+*!, '16'&' 8"%*# IRowset::Release. F-%"!/",$ IAccessor * !"#"()"% $("#42@." 8"%*#1:

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AddRefAccessor – 4'"(.7.'&"% 7.$(* $$1(*0 -& #&--1, &0$"$$*!; CreateAccessor – $*6#&"% &0$"$$*! .6 -&+*!& $')61'&-.,; GetBindings – '*6'!&@&"% $')61'&-.), 4$%&-*'("--1" #&--18 &0$"$$*!*8; ReleaseAccessor – *$'*+*3#&"% &0$"$$*!. J() $*6#&-.) &0$"$$*!& $("#4"% 6& !*$.%; .-%"!/",$ IAccessor . '1 *(-.%; $("#42@., 0*#: HRESULT hr=pIAccessor-> CreateAccessor(); :"%*# CreateAccessor .8""% $("#42@"" /*!8&(;-*" * .$&-.": HRESULT CreateAccessor ( DBACCESSORFLAGS dwAccessorFlags, // 3!9&/$%&' // /0!-(1$ &-& 9$)$7'0)$ DBLENGTH cbRowSize, // =&/-! ($<0!3, // &/9!-4"6'7*+ #-. !#%!;! %$(!)$ 9$)$7'0)!3 HACCESSOR *phAccessor, // ?8$"$0'-4 //%$ /!"#$%%*< $8/'//!) DBBINDSTATUS rgStatus[]); // @$//&3 "%$5'%&<, // !9)'#'-.AB&< /0$06/ // 8$:#!;! /3."*3$%&. G&3#1, $%*(+"5 /*!8.!4"8*>* !"64(;%.!42@">* -&+*!& .(. &!&8"%! * .$1'&"%$) $%!40%4!*, DBBINDING, 0*%*!&) .8""% $("#42@"" /*!8&(;-*" * .$&-.": typedef struct tagDBBINDING { DBORDINAL iOrdinal; // 2!).#8!3*< %!7')

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// /0!-(1$ &-& 9$)$7'0)$ (%$5&%$. / 1) DBBYTEOFFSET obValue; // #3&; 3 ($<0$+ #-. // "%$5'%&. /0!-(1$ &-& 9$)$7'0)$ 3 (6C')' // (68$"$0'-4 %$ (6C') "$#$'0/. 9)& // /!"#$%&& $8/'//!)$) DBBYTEOFFSET obLength; DBBYTEOFFSET obStatus; ITypeInfo *pTypeInfo; DBOBJECT *pObject; DBBINDEXT *pBindExt; DBPART dwPart; DBMEMOWNER dwMemOwner; DBPARAMIO eParamIO; DBLENGTH cbMaxLen; DWORD dwFlags; DBTYPE wType; BYTE bPrecision; BYTE bScale; } DBBINDING; A*(" wType * !"#"()"% %. $%*(+5& .(. &!&8"%!&, 0*%*!1, * !"#"()"%$) $("#[email protected] *+!&6*8: typedef WORD DBTYPE; enum DBTYPEENUM { // -'#6AB&' "%$5'%&. 0!5%! /!!03'0/036A0 VARENUM // 9)& $30!7$0&"$1&& & %' 7!;60 (*04 &/9!-4"!3$%* // 8$8 VARIANT. DBTYPE_EMPTY = 0, // D%$5'%&' !0/60/036'0, // /!!03'0/036AB';! 0&9$ %'0 DBTYPE_NULL = 1, // D%$5'%&' )$3%! NULL,

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DBTYPE_I2 = 2, DBTYPE_I4 = 3,

// // // // //

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/!!03'0/036AB';! 0&9$ %'0 ,36+($<0!3!' 1'-!' /! "%$8!7, /!!03'0/036'0 0&96 short ='0*)'+($<0!3!' 1'-!' /! "%$8!7, /!!03'0/036'0 0&96 long

DBTYPE_R4 = 4, DBTYPE_R8 = 5, // E'B'/03'%%!' #3!<%!< 0!5%!/0&, // /!!03'0/036'0 0&96 Double DBTYPE_CY = 6, // F&9 #-. "%$5'%&. Cyrrency DBTYPE_DATE = 7, // F&9 #-. "%$5'%&. #$0* // (#$0$ +)$%&0/. 3 3&#' 3'B'/03'%%!;! 5&/-$: // 1'-!5&/-'%%$. 5$/04 !9)'#'-.'0 #$06, // $ #)!(%$. – 3)'7.) DBTYPE_BSTR = 8, // ?8$"$0'-4 %$ /0)!86 BSTR DBTYPE_IDISPATCH = 9, // ?8$"$0'-4 %$ &%0')C'#%!($<0!3!' ('""%$8!3!' 1'-!', // /!!03'0/036'0 0&96 byte DBTYPE_ARRAY = 0x2000, DBTYPE_BYREF = 0x4000, DBTYPE_I1 = 16, DBTYPE_UI2 = 18,

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DBTYPE_UI4 = 19, // -'#6AB&' "%$5'%&. 0!5%! /!!03'0/036A0 VARENUM // 9)& $30!7$0&"$1&&, %! %' 7!;60 (*04 &/9!-4"!3$%* // 8$8 VARIANT. DBTYPE_I8 = 20, DBTYPE_UI8 = 21, DBTYPE_GUID = 72, // ,-. 6%&8$-4%!;! // &#'%0&C&8$0!)$ GUID DBTYPE_VECTOR = 0x1000, DBTYPE_FILETIME = 64, DBTYPE_RESERVED = 0x8000, //

-'#6AB&' "%$5'%&. %'#!96/0&7* 3 VARENUM #-. OLE. DBTYPE_BYTES = 128, DBTYPE_STR = 129, DBTYPE_WSTR = 130, DBTYPE_NUMERIC = 131, DBTYPE_UDT = 132, DBTYPE_DBDATE = 133,// ,-. #$0*, !9)'#'-.'7!< // 8$8 /0)6806)$ // Typedef struct tagDBDATE { // SHORT year; // USHORT month; // USHORT day; // } DBDATE; DBTYPE_DBTIME = 134, DBTYPE_DBTIMESTAMP = 135 // ,-. #$0* & 3)'7'%&, // !9)'#'-.'7*+ 8$8 /0)6806)$

1$2!$+"*3$ !$4 !'&','../0 !),"5'.)% +$2 &$../0 // Typedef struct tagDBTIMESTAMP { // SHORT year; // USHORT month; // USHORT day; // USHORT hour; // USHORT minute; // USHORT second; // ULONG fraction; } DBTIMESTAMP; DBTYPE_HCHAPTER = 136 DBTYPE_PROPVARIANT = 138, DBTYPE_VARNUMERIC = 139 }; A"!"# .$ *(;6*'&-."8 *+D"0%& Command $("#4"% * !"#"(.%;, *##"!3.'&"%$) (. #&--1, *+D"0%. J( <%*>* $ *8*@;2 8"%*#& QueryInterface $("#4"% 6& !*$.%; .-%"!/",$ IDBCreateCommand *+D"0%& $"&-$. K+D"0% Command #*(3"- !"&(.6*'1'&%; $("#42@." .-%"!/",$1: ICommand IAccessor ICommandText IColumnInfo ICommandProperties. J() $*6#&-.) 0*8&-#1 '161'&"%$) 8"%*# IDBCreateCommand::CreateCommand *+D"0%& $"&-$. I& !.8"!: ICommandText pICommandText;

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HRESULT hr= pIDBCreateCommand-> CreateCommand( NULL, // O$(. "$%; &>!">.!*'&-.", %* 40&6&%"(; // -& 4 !&'()2@., IUnknown IID_ICommandText, // P& !&C.'&"81, .-%"!/",$ (IUnknown**)& pICommandText); // Q0&6&%"(; -& // 6& !&C.'&"81, .-%"!/",$ B"0$%, '1 *(-)"81, 0*8&-#*,, 4$%&-&'(.'&"%$) !. '16*'" 8"%*#& ICommandText::SetCommandText. A!. <%*8 40&61'&"%$) 4-.0&(;-1, .#"-%./.0&%*! GUID $.-%&0$.$& 0*8&-#1. I& !.8"!: pICommandText->SetCommandText(DBGUID_SQL, "SELECT f1, f2 FROM TBL1 WHERE f3>10"); J() '1 *(-"-.) 0*8&-#1 '161'&"%$) 8"%*# ICommand::Execute (<%*% 8"%*# -&$("#4"%$) .-%"!/",$*8 ICommandText). I& !.8"!: ULONG ulRs=0; IRowset** ppRowsets=NULL; HRESULT hr= pICommandText->Execute ( NULL, // "$(. "$%; &>!">.!*'&-.", %* 40&6&%"(; // -& 4 !&'()2@., IUnknown IID_IRowset, // P& !&C.'&"81, .-%"!/",$ NULL, // Q0&6&%"(; -& $%!40%4!4 %. & // struct DBPARAMS { // void *pData; // DB_UPARAMS cParamSets; // HACCESSOR hAccessor; //};

ulRs, // G*(.7"$%'* $%!*0, -* 0*%*!1" // '*6#",$%'*'&(& 0*8&-#& INSERT, UPDATE

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//.(. DELETE (IUnknown**)& ppRowsets); // Q0&6&%"(; -& // 40&6&%"(. -&+*!*' #&--19 E(>*!.%8 '1 *(-"-.) 0*8&-#1 !.'"#"- -& $("#42@", $9"8": Session " pIDBCreateCommand->CreateCommand # Command " pICommand->Execute # Rowset J* '1 *(-"-.) 0*8&-#1 8*3-* * !"#"(.%; *'"#"-." $*6#&'&"8*>* !"64(;%.!42@">* -&+*!& '16*'*8 8"%*#& ICommandProperties::SetProperties. J() 8-*>*0!&%-*>* '1 *(-"-.) 6& !*$& . !. .$ *(;6*'&-.. &!&8"%!*' $("#4"% '16'&%; 8"%*# ICommandPrepare::Prepare, & 6&%"8 * !"#"(.%; &!&8"%!1 '16*'*8 8"%*#& ICommandWithParameters::SetParameterInfo. O$(. ' !"64(;%&%" '1 *(-"-.) 0*8&-#1 '*6'!&@&"%$) -"$0*(;0* !"64(;%[email protected] -&+*!*', %* .$ *(;64"%$) 8"%*# IMultipleResults::GetResult. A!.8"-"-." OLE DB *6'*()"% *##"!3.'&%; !*$%1", '(*3"--1" . !&$ !"#"("--1" %!&-6&05... K+D"0% Session #() !&+*%1 $ %!&-6&05.)8. *##"!3.'&"% $("#42@." .-%"!/",$1: .-%"!/",$ ITransactionLocal. J() -&7&(& %!&-6&05.. '161'&"%$) 8"%*# ITransactionLocal::StartTransaction(). O$(. <%*% 8"%*#

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'161'&"%$) .6 &0%.'-*, %!&-6&05.., %* *%0!1'&"%$) -*'&) '(*3"--&) %!&-6&05.); .-%"!/",$ ITransaction, *##"!3.'&2@., 8"%*#1 Abort, Commit . GetTransactionInfo; .-%"!/",$ ITransactionJoin, !"&(.642@., *##"!304 !&$ !"#"("--19 %!&-6&05.,. K+D"0% Transaction *6'*()"% !"&(.6*'1'&%; +*("" C.!*0." '*68*3-*$%. 4 !&'("-.) %!&-6&05.)8., *##"!3.'&) $("#42@." .-%"!/",$1: ITransaction, *6'*()2@., '1 *(-.%; !"!1'&-." %!&-6&05.. (8"%*#1 Abort, Commit, GetTransactionInfo); IConnectionPointContainer, *##"!3.'&2@., 4 !&'("-." %*70&8. $*"#.-"-.) #() $*"#.-)"819 *+D"0%*'.

!"# 6. $%&"!'!'&! (%!)(*+ ADO.NET ATL ATL !"#*$%&'()"% OLE DB C&+(*-1, 0&0 ?++ C&+(*-1, #() !"&(.6&5.. 0(."-%*' . $"!'"!*' OLE DB. J() !"&(.6&5.. 0(."-%& OLE DB !*'&,#"!& 8*3-* .$ *(;6*'&%; $("#42@." 0(&$$1: CDataConnection – 0(&$$, 4 !&'()2@., $*"#.-"-."8 $ .$%*7-.0*8 #&--19 . .-0& $4(.!42@%, *'"#"-." *+D"0%*' OLE DB .$%*7-.0 #&--19 (DataSource) . $"&-$ (Session); CDataSource–0(&$$, $**%'"%$%'42@., *+D"0%4 OLE DB .$%*7-.0 #&--19, !"#*$%&'()2@">* $*"#.-"-." $ .$%*7-."*8 #&--19 7"!"6 OLE DB !*'&,#"!&.J() *#-*>* $*"#.-"-.) 8*3-* $*6#&%; -"$0*(;0* *+D"0%*' $"&-$*' (CSession); CEnumerator – 0(&$$, $**%'"%$%'42@., *+D"0%4 OLE DB -48"!&%*!, !"#*$%&'()2@"84 $!"#$%'& #() *(47"-.) -&+*!*' #&--19, $*#"[email protected] .-/*!8&5.2 *+ .$%*7-.0&9 #&--19;

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CEnumeratorAccessor – 0(&$$, .$ *(;64"81, 0(&$$*8 CEnumerator #() #*$%4 & 0 #&--18 .6 -&+*!& #&--19 -48"!&%*!&; CSession – 0(&$$, !"&(.642@., $"&-$ #*$%4 & 0 +&6" #&--19. CAccessor – 0(&$$ &0$"$$*!&, .$ *(;64"81, #() 6& .$", $%&%.7"$0. $')6&--19 $ .$%*7-.0*8 #&--19. H%*% 0(&$$ .$ *(;64"%$) ' %*8 $(47&", "$(. .6'"$%-& $%!40%4!& .$%*7-.0& #&--19; CAccessorBase – +&6*'1, 0(&$$ '$"9 0(&$$*' &0$"$$*!*'; CDynamicAccessor – 0(&$$ &0$"$$*!&, .$ *(;64"81, #() !"64(;%[email protected] -&+*!*' ' %*8 $(47&", "$(. $%!40%4!& .$%*7-.0& #&--19 -" .6'"$%-& ($*6#&-." &0$"$$*!& 8*3"% +1%; * !"#"("-* ' !"3.8" '1 *(-"-.)); CDynamicParameterAccessor – 0(&$$ &0$"$$*!&, .$ *(;64"8*>* ' %*8 $(47&", "$(. %. 1 0*8&-#1 -".6'"$%-1. A*(47.%; .-/*!8&5.2 * &!&8"%!&9 8*3-* *$!"#$%'*8 .-%"-!/",$& ICommandWithParameters; CDynamicStringAccessor – 0(&$$ &0$"$$*!&, *6'*()2@., !"&(.6*'&%; #*$%4 0 .$%*7-.04 #&--19, "$(. $%!40%4!& +&61 #&--19 -".6'"$%-&; CDynamicStringAccessorA – 0(&$$ &0$"$$*!&, !"#*$%&'()2@., '*68*3-*$%. &-&(*>.7-* 0(&$$4 CDynamicStringAccessor, -* $ %"8 *>!&-.7"-."8, 7%* #&--1", #*$%4 -1" .6 .$%*7-.0& #&--19, +1(. #*$%4 -1 0&0 ANSI-$%!*0. #&--19; CDynamicStringAccessorW – 0(&$$ &0$"$$*!&, !"#*$%&'()2@., '*68*3-*$%. &-&(*>.7-* 0(&$$4 CDynamicStringAccessor, -* $ %"8 *>!&-.7"-."8, 7%* #&--1", #*$%4 -1" .6 .$%*7-.0& #&--19, +1(. #*$%4 -1 0&0 UNICODE -$%!*0. #&--19; CManualAccessor – 0(&$$ &0$"$$*!&, !"#*$%&'()2@., 8"%*#1 #() $')61'&-.) 0&0 $%*(+5*', %&0 . &!&8"%!*' '* '!"8) '1 *(-"-.). CNoAccessr – .$ *(;64"%$) ' %*8 $(47&", "$(. -" -43"- 0(&$$ #() $')61'&-.) &!&8"%!*' .(. $%*(+5*' !"64(;%.!42@">* -&+*!&; CXMLAccessor – 0(&$$ &0$"$$*!&, !"#*$%&'()2@., '*68*3-*$%. &-&(*>.7-* 0(&$$4 CDynamicStringAccessor, -* $ %"8 *>!&-.7"-."8,

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7%* #&--1", #*$%4 -1" .6 .$%*7-.0& #&--19 0*-'"!%.!42%$) ' XML/*!8&%; CAccessorRowset – .-0& $4(.!4"% !&+*%4 $ !"64(;%[email protected] -&+*!*8 . $**%'"%$%'[email protected] "84 &0$"$$*!*8; CArrayRowset – *6'*()"% !"&(.6*'1'&%; #*$%4 0 !"64(;%.!42@"84 -&+*!4 0&0 0 8&$$.'4; CBulkRowset – *6'*()"% '1 *(-)%; 6& *#.- '16*' /4-05.. '1+*!04 -"$0*(;0.9 $%!*0 !"64(;%.!42@">* -&+*!&; CNoRowset – 8*3"% .$ *(;6*'&%;$) ' %*8 $(47&", "$(. !"64(;%.!42@">* -&+*!& -" '*6'!&@&"%$) (#() CCommand .(. CTable); CRestrictions – .$ *(;64"%$) #() 6&#&-.) *>!&-.7"-., #() !"64(;%[email protected] -&+*!*' $9"81; CRowset – !.8"-)"%$) #() .6'("7"-.) #&--19 . 4 !&'("-.) !"64(;%[email protected] -&+*!*8; CStreamRowset – '*6'!&@&" *+D"0% %. & ISequentialStream, .$ *(;64"81, #&("" #() '1+*!0. #&--19 ' XML-/*!8&%" ('16*'*8 8"%*#& Read); CCommand – !.8"-)"%$) #() 6&#&-.) . '1 *(-"-.) 0*8&-# OLE DB; 8*3"% .$ *(;6*'&%;$) #() $*6#&-.) !"64(;%[email protected] -&+*!*'; *6'*()"% 6&#&'&%; &!&8"%!1; CMultipleResults – !.8"-)"%$) #() 0*8&-#, $*6#[email protected] -"$0*(;0* !"64(;%[email protected] -&+*!*'; CNoMultipleResults – !.8"-)"%$) * 48*(7&-.2 #() 0*8&-#, $*6#[email protected] %*(;0* *#.- !"64(;%.!42@., -&+*!; CTable – .$ *(;64"%$) #() #*$%4 & 0 !"64(;%.!42@"84 -&+*!4 +"6 40&6&-.) &!&8"%!*'. J() *#0(27"-.) 0 +&6" #&--19 $("#4"% $*6#&%; *+D"0% %. & CDataSource, 6&%"8 *+D"0% %. & CSession.

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prm = Server.CreateObject("ADODB.Parameter"); // ?*6#&-." &!&8"%!& prm.Type = adInteger; // B. &!&8"%!& prm.Size = 3; prm.Direction = adParamInput; prm.Value = 123; cmd.Parameters.Append(prm); cmd.ActiveConnection = Con; // F$ *(;64"8*" $*"#.-"-." rs = cmd.Execute(); // A*(47"-." !"64(;%.!42@">* -&+*!& while (!rs.EOF) { rs.MoveNext; // A"!"9*# 0 $("#42@", 6& .$. } } if (rs.State == adStateOpen) rs.Close; if (Con.State == adStateOpen) Con.Close; rs = null; Con = null; ?*6#&%; !"64(;%.!42@., -&+*! 8*3-* . -" *$!"#$%'"--*, .$ *(;64) 8"%*# Open *+D"0%& Recordset. I& !.8"!: var strCon = "Provider='sqloledb';Data Source=" + Request.ServerVariables("SERVER_NAME") + ";" + "Initial Catalog='pubs';"; var rs = Server.CreateObject("ADODB.Recordset");

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rs.open( "select f1,f2 from tbl1", strCon, adOpenForwardOnly, adLockReadOnly, adCmdText); rs.MoveFirst(); while (rs.EOF != true) { // … rs.MoveNext(); }

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OleDbDataAdapter tbl2Adapter = new OleDbDataAdapter( "SELECT * FROM Tbl2", // =;" *%&+,-&-," tbl2Con); // ,*#%;846&! OleDbConnection DataSet tbl_1_2 = new DataSet(); // ./0%$') 2 -)0%$ +)--/: +26: ()0;,< tbl1Adapter.Fill(tbl_1_2, "Tbl1"); tbl2Adapter.Fill(tbl_1_2, "Tbl2"); // 1#$&+&;&-,& %(-%>&-,5 !&?+6 ()0;,<)!, // -)0%$) +)--/: DataRelation rel = tbl_1_2.Relations.Add( "t_1_2", tbl_1_2.Tables["Tbl1"].Columns["id1"], tbl_1_2.Tables["Tbl2"].Columns["id1"]); foreach (DataRow pRow in tbl_1_2.Tables["Tbl1"].Rows) { // 7)#,*/2)&! 2 #%(%' 2/2%+) 4-)9&-,& // #%;" id1 ,4 Tbl1 Console.WriteLine(pRow["id1"]); foreach (DataRow cRow in pRow.GetChildRows(rel)) // 7)#,*/2)&! 2 #%(%' 2/2%+) 4-)9&-,& // #%;" id2 ,4 +%9&$-&5 ()0;,
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128

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O,-'21+,!* *!6;A!! 2$/!)?'.$! $:
WriteXmlSchema

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129

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// =%0)2;&-,& *(%;0<)

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// 2 %0B&'( (,#) DataTable // =%0)2;&-,& %E$)-,9&-," UniqueConstraint table.Constraints.Add(new UniqueConstraint(col)); // =%0)2;&-,& 7 *($%'. DataRow newRow; // 10B&'( *($%') ()0;,
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131

// Proposed - #$&+#%;)E)&!)" Console.Write("A$&+#%;)E)&!%& 4-)9&-,&: " + row[0,DataRowVersion.Proposed] + "\n"); }

// // //

// //

Console.WriteLine("\n"); // A$,*2),2)&! *+&;)--/& ,4!&-&-," table.AcceptChanges(); A%*;& 2/4%2) BeginEdit 6*()-)2;,2)&! +;" +26: *($%' %+,-)'%2/& 4-)9&-,", (&! *)!/! -)$6>)" %E$)-,9&-,& <&;%*(-%*(,: table.Rows[0].BeginEdit(); table.Rows[1].BeginEdit(); table.Rows[0][0]= 100; table.Rows[1][0]=100; try { ./4%2 !&(%+) EndEdit. ,-,<,,$6&( #$%2&$'6 %E$)-,9&-," UniqueConstraint table.Rows[0].EndEdit(); table.Rows[1].EndEdit(); } catch(Exception e) { Console.WriteLine("@,# %>,0', {0} occurred.", e.GetType()); }

} // 10$)0%(') *%0/(," RowChanged private void Row_Changed( object sender, System.Data.DataRowChangeEventArgs e) { DataTable table = (DataTable) sender;

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./

132

Console.WriteLine("RowChanged " + e.Action.ToString() + "\table" + e.Row.ItemArray[0]); // 32%5*(2% ItemArray // #$&+*()2;"&( !)**,2, // ,*#%;846&!/5 +;" +%*(6#) // ' 4-)9&-,"! *($%', } K!*$/ Delete $:
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A!&1.+7) MFC Application Wizard 9$/7$#(,+ 9!)8+"@&.8" *&/ 7.(8$4$ 9!$4!)00"!$7)'"( !)/!)*)+27)+6 9!"#$%&'"(, 729$#'(,-"& 9$18#,@&'"& 8 +)*#"=& *)/2 1)''23 " $+$*!)%&'"& .$1&!%"0$4$ && 9$#&;. !" <+$0 1#( !&)#"/)="" 1$.+59) 8 *)/& 1)''23 ".9$#6/5&+.( "#" 0&3)'"/0 ODBC "#" OLE DB. ?#( +$4$ @+$*2 ".9$#6/$7)+6 ODBC-1!);7&!2 9&!7$')@)#6'$ .#&15&+ .$/1)+6 0(&%3-0' +!--./ DSN (DataSourceName). B+$ 0$%'$ .1&#)+6 8)8 7 0$0&'+ >$!0"!$7)'"( 9!$&8+) . 9$0$-6, MFC Application Wizard , +)8 " ".9$#6/5( ODBC32 9)'&#" 59!)7#&'"( Windows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pplication. 2. F7+$0)+"@&.8" >$!0"!5&02& 9!"#$%&'"(, !&)#"/5,-"& !)*$+5 . *)/$; 1)''23, 1$#%'2 9$11&!%"7)+6 )!3"+&8+5!5 1$850&'+$+$*!)%&'"&. 3. &!&;1"+& ') .+!)'"=5 Database Support " $9!&1&#"+& 9$11&!%85 !)*$+2 . *)/$; 1)''23. C9="( Database view without file support $*&.9&@"7)&+ >$!0"!$7)'"( 8$1), 729$#'(,-&4$ 9$18#,@&'"& 8 ".+$@'"85 1)''23, '$ *&/ 9$11&!%8" 0&3)'"/0) .&!")#"=)="".

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4. D2*&!"+& 0&3)'"/0 1$.+59) (Client type). C9="( ODBC $*&.9&@"7)&+ 78#,@&'"& 7 9!$&8+ /)4$#$7$@'$4$ >);#) AFXDB.H " #"'85&023 *"*#"$+&8. !" <+$0 '"8)8"& 8#)..2 9!$"/7$1'2& $+ 8#)..$7, !&)#"/5,-"3 !)*$+5 . *)/$; 1)''23, '& .$/1),+.(. C9="( OLE DB $*&.9&@"7)&+ 78#,@&'"& 7 9!$&8+ /)4$#$7$@'23 >);#$7 ATLBASE.H, AFXOLEDB.H " ATLPLUS.H. G.#" 1#( Database Support *2#) 5.+)'$7#&') $9="( Database view without file support "#" Database view with file support, +$ 1#( 0&3)'"/0) ODBC .$/1)7)&02; 8#).. $+$*!)%&'"( *51&+ ').#&1$7)+6.( $+ CRecordView " *51&+ )..$=""!$7)' . 8#)..$0 !&/5#6+"!5,-&4$ ')*$!), ').#&15&0$4$ $+ CRecordset. ?#( 0&3)'"/0) OLE DB 8#).. $+$*!)%&'"( ').#&15&+.( $+ COleDBRecordView " )..$=""!5&+.( . 8#)..$0, ').#&15&020 $+ CTable "#" CCommand.

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H"9 !&/5#6+"!5,-&4$ ')*$!) 0$%'$ $9!&1&#"+6 $1'$; "/ .#&15,-"3 $9="; (+!&*5&+.( 9$11&!%8) ODBC 1!);7&!)): dynaset – 1"')0"@&.8"; !&/5#6+"!5,-"; ')*$!, 9$/7$#(,-"; "0&+6 1$.+59 8 "/0&'(&0$; "'>$!0)="" !&/5#6+)+) /)9!$.); snapshot – !&/5#6+"!5,-"; ')*$! (.'"0$8), '& $+$*!)%),-"; "/0&'&'";, .1&#)''23 9$.#& 729$#'&'"( 1)''$4$ /)9!$.). ?)#&& .#&15&+ "#" 72*!)+6 5%& .5-&.+75,-"; ".+$@'"8 1)''23, . 8$+$!20 5.+)')7#"7)&+.( .$&1"'&'"&, "#" .$/1)+6 '$72;. $.#& $9!&1&#&'"( ".9$#6/5&0$4$ ".+$@'"8) 1)''23 " "1&'+">"8)="" 9$#6/$7)+&#( $+$*!)%)&+.( 1")#$4 .$ 7.&0" +)*#"=)0" " 9!&1.+)7#&'"(0" ".+$@'"8) 1)''23, 9!"')1#&%)-"3 1)''$05 9$#6/$7)+&#,. D <+$0 1")#$4& 0$%'$ 58)/)+6 +)*#"=5 *)/2 1)''23, 8 8$+$!$; *51&+ 729$#'(+6.( 1$.+59.

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136

J#).. $+$*!)%&'"( *51&+ ').#&1$7)' $+ 8#)..) ARecordView, ) 8#).. !&/5#6+"!5,-&4$ ')*$!) $+ 8#)..) CRecordset. ?)#&& AppWizard )7+$0)+"@&.8" .$/1).+ E)*#$' 9!"#$%&'"(. A$/1)''$& 9!"#$%&'"& *51&+ .$1&!%)+6 9)' "'.+!50&'+$7 . 8'$98)0" 1#( 9&!&3$1) 0&%15 /)9".(0" +)*#"=2 *)/2 1)''23, '$ '& *51&+ .$1&!%)+6 <#&0&'+$7 59!)7#&'"( 1#( $+$*!)%&'"( 9$#&; +)*#"=2 *)/2 1)''23. C+$*!)%&'"& 9$#&; *)/2 1)''23 K).+&! MFC Application Wizard .$/1)&+ 7 8#)..& ').#&15&0$0 $+ CRecordset 9&!&0&''2& @#&'2 8#)..) 1#( 8)%1$4$ 9$#( +)*#"=2 9$18#,@)&0$; *)/2 1)''23. I)9!"0&!: CODBC_1Set::CODBC_1Set(CDatabase* pdb) // !"#$%&'$!% '()##) : CRecordset(pdb) // ")#(*+&*,!-! !$ CRecordset { m_f1 = 0; // .*%*,*"")/ 0(*" '()##) +(/ 1--! 1!(/ m_f2 = 0; // .*%*,*"")/ 0(*" '()##) +(/ 2--! 1!(/ m_f3 = L""; m_f4; m_nFields = 4; // !(20*#$3! 1!(*4 m_nDefaultType = dynaset; } void CODBC_1Set::DoFieldExchange(CFieldExchange* pFX) { pFX->SetFieldType(CFieldExchange::outputColumn); RFX_Long(pFX, _T("[f1]"), m_f1); RFX_Long(pFX, _T("[f2]"), m_f2); RFX_Text(pFX, _T("[f3]"), m_f3); RFX_Date(pFX, _T("[f4]"), m_f4); ?#( +$4$ @+$*2 $+$*!)/"+6 7 >$!0& 9$#( *)/2 1)''23 .#&15&+: 1. D !&1)8+$!& !&.5!.$7 1#( 8)%1$4$ 9$#( +)*#"=2 '&$*3$1"0$ 1$1)7"+6 .$$+7&+.+75,-"; &05 <#&0&'+ 59!)7#&'"(.

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D 0&+$1 DoDataExchange 8#)..) $+$*!)%&'"( .#&15&+ 7.+)7"+6 72/$72 0&+$1$7 DDX_FieldText ("#" DDX_FieldCheck, DDX_FieldRadio, DDX_FieldSlider " +.9.), 729$#'(,-"3 .7(/6 0&%15 "1&'+">"8)+$!$0 !&.5!.) " 9&!&0&''$; @#&'$0 8#)..) !&/5#6+"!5,-&4$ ')*$!). I)9!"0&!: void CODBC_1View::DoDataExchange(CDataExchange* pDX) { CRecordView::DoDataExchange(pDX); DDX_FieldText(pDX, IDC_EDIT1, m_pSet->m_f1, m_pSet); DDX_FieldText(pDX, IDC_EDIT2, m_pSet->m_f2, m_pSet); } $.#& <+$4$ /)9"." *)/2 1)''23 *515+ $+$*!)%)+6.( 7 $8'& 1$850&'+) 7 <#&0&'+)3 59!)7#&'"( $8'$ !&1)8+"!$7)'"(.

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80(&0-9 ',!((! %&%$#!1*-0: -!(,*+4*;%9% %& CRecordView: // ODBC_1View.cpp : %*)(25)62/ '()##) !$!7%)8*"2/ #include "stdafx.h" #include "ODBC_1.h" #include "ODBC_1Set.h" #include "ODBC_1Doc.h" #include "ODBC_1View.h" IMPLEMENT_DYNCREATE(CODBC_1View, CRecordView) BEGIN_MESSAGE_MAP(CODBC_1View, CRecordView) // Standard printing commands ON_COMMAND(ID_FILE_PRINT, CRecordView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_DIRECT, CRecordView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_PREVIEW, CRecordView::OnFilePrintPreview) END_MESSAGE_MAP() CODBC_1View::CODBC_1View() // !"#$%&'$!% : CRecordView(CODBC_1View::IDD) { m_pSet = NULL;} CODBC_1View::~CODBC_1View() { }

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./

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void CODBC_1View::DoDataExchange(CDataExchange* pDX) { CRecordView::DoDataExchange(pDX); // 91%*+*(*"2* #3/52 ,*8+& :(*,*"$),2 &1%)3(*"2/ 2 1*%*,*"";,2 // 0(*"),2 '()##) %*5&(<$2%&=>*-! ")7!%) DDX_FieldText(pDX, IDC_EDIT1, m_pSet->m_f1, m_pSet); DDX_FieldText(pDX, IDC_EDIT2, m_pSet->m_f2, m_pSet); DDX_FieldText(pDX, IDC_EDIT3, m_pSet->m_f3, m_pSet); } BOOL CODBC_1View::PreCreateWindow(CREATESTRUCT& cs) { // TODO: ,*#$! +(/ %*+)'$2%!3)"2/ // #$%&'$&%; CREATESTRUCT cs return CRecordView::PreCreateWindow(cs); } void CODBC_1View::OnInitialUpdate() { m_pSet = &GetDocument()->m_ODBC_1Set; // ?3/5;3)"2* +!'&,*"$) // # %*5&(<$2%&=>2, ")7!%!, CRecordView::OnInitialUpdate(); } BOOL CODBC_1View::OnPreparePrinting(CPrintInfo* pInfo) { // default preparation return DoPreparePrinting(pInfo); } void CODBC_1View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: ,*#$! +(/ '!+), 3;1!("/*,!-! 1*%*+ 1*0)$<= +!'&,*"$) } void CODBC_1View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: add cleanup after printing } // CODBC_1View – 1!++*%8') %)7!$; # 7)5!4 +)"";@ CRecordset* CODBC_1View::OnGetRecordset() { return m_pSet; }

!"#!$%&'! #!()#*+*,*--./ )#0,%1*-02 $!" +!--./ 80(&0-9 ',!((! #*"4,5&0#467*9% -!$%#! -!(,*+4*;%9% %& CRecordset: // ODBC_1Set.cpp : %*)(25)62/ '()##) %*5&(<$2%&=>*-! ")7!%) #include "stdafx.h" #include "ODBC_1.h" #include "ODBC_1Set.h" IMPLEMENT_DYNAMIC(CODBC_1Set, CRecordset) CODBC_1Set::CODBC_1Set(CDatabase* pdb) // !"#$%&'$!% : CRecordset(pdb) { m_f1 = 0; // A"262)(25)62/ 0(*"!3 '()##) m_f2 = 0; m_f3 = L""; m_f4; m_nFields = 4; m_nDefaultType = dynaset; } CString CODBC_1Set::GetDefaultConnect() { return _T("DSN=MySQLDB;DBQ=C:\\C_Project\\db1.mdb;DriverId=25;FIL=MS Access;MaxBufferSize=2048;PageTimeout=5;PWD=one;UID=admin;"); } CString CODBC_1Set::GetDefaultSQL() { return _T("[tbl1]"); // A,/ 1%!#,)$%23)*,!4 $)7(26; // 7)5; +)"";@ } void CODBC_1Set::DoFieldExchange(CFieldExchange* pFX) { pFX->SetFieldType(CFieldExchange::outputColumn); RFX_Long(pFX, _T("[f1]"), m_f1); RFX_Long(pFX, _T("[f2]"), m_f2); RFX_Text(pFX, _T("[f3]"), m_f3); RFX_Date(pFX, _T("[f4]"), m_f4); }

140

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CDatabase( ); J$'.+!58+$! $*L&8+) CDatabase. virtual BOOL OpenEx (LPCTSTR lpszConnectString, DWORD dwOptions = 0); throw( CDBException, CMemoryException ); K&+$1 $+8!27)&+ *)/5 1)''23. !" 5.9&E'$0 /)7&!E&'"" 0&+$1 7$/7!)-)&+ '&'5#&7$& /')@&'"&. G.#" 9$#6/$7)+ -)&+ 9$ 8'$98& Cancel 7 1")#$4&, /)9!)E"7),-&0 1$9$#'"+'5, "'>$!0)=",, +$ 0&+$1 7$/7!)-)&+ /')@&'"& 0. D $.+)#6'23 .#5@)(3 *!$.)&+.( ".8#,@&'"&. )!)0&+!2: lpszConnectString - $9!&1&#(&+ ODBC .+!$85 9$18#,@&'"(. C') 78#,@)&+ ".+$@'"8 1)''23 " '&8$+$!5, 1$9$#'"+'5, "'>$!0)=",, +)85, 8)8 "1&'+">"8)+$! 9$#6/$7)+&#( " 9)!$#6. I)9!"0&!: "DSN=SQLServer_Source;UID=U1;PWD=user1". G.#" 58)/)+6 9)!)0&+! lpszConnectString !)7'20 NULL, +$ 9$(7"+.( .+)'1)!+'2; 1")#$4 Data Source, 9$/7$#(,-"; 9$#6/$7)+&#, 72*!)+6 1$.+59'2; ".+$@'"8 1)''23. dwOptions - 9$ 50$#@)'", 9)!)0&+! !)7&' '5#,, @+$ 9!&19$#)4)&+, @+$ *)/) 1)''23 *51&+ $+8!2+) . !)/1&#(&020 1$.+59$0 " . 9!)7)0" /)9"."; ODBC Cursor Library DLL '& *51&+ /)4!5%&'); ODBC 1")#$4 *51&+ 9$(7#(+6.( +$#68$ 7 +$0 .#5@)&, &.#" '&1$.+)+$@'$ "'>$!0)="" 1#( 729$#'&'"( 9$18#,@&'"( 8 *)/& 1)''23. B+$+ 9)!)0&+! (7#(&+.( *"+$7$; 0).8$;, $9!&1&#(&0$; 8$0*"')="&; .#&15,-"3 /')@&'";: CDatabase::openExclusive – 7 +&85-&; 7&!."" MFC-*"*#"$+&8" '& 9$11&!%"7)&+.(: ".+$@'"8 1)''23 7.&41) $+8!27)&+.( 7 !)/1&#(&0$0 !&%"0&; CDatabase::openReadOnly – $+8!2+"& ".+$@'"8) 1)''23 +$#68$ 1#( @+&'"(;

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CDatabase::useCursorLib – 58)/27)&+ /)4!5/85 *"*#"$+&8" ODBC Cursor Library DLL, 0).8"!5,-&; '&8$+$!5, >5'8="$')#6'$.+6 ODBC-1!);7&!); CDatabase::noOdbcDialog – 9!&1$+7!)-)&+ 9$(7#&'"& 1")#$4) 1#( 9$1.$&1"'&'"( ".+$@'"8) 1)''23; CDatabase::forceOdbcDialog – $*&.9&@"7)&+ $+$*!)%&'"& 1")#$4) . =, $9!&1&#&'"( "'>$!0)="" 1#( ODBC .$&1"'&'"(. I)9!"0&!: // C#$%)23)"2* !7B*'$) CDatabase 3 1%!253!+";4 '()## +!'&,*"$) CDatabase m_dbBData( ); // 97B*'$ CDatabase: !$'%;$2* 2#$!0"2') +)"";@ $!(<'! ") 0$*"2* m_dbBData.OpenEx( _T( "DSN=MYDATASOURCE;UID=U1" ), CDatabase::openReadOnly | CDatabase::noOdbcDialog ) ); virtual void Close( ); !"#$ %&'()*&!" +#!$,-!-,! + .&%#/ $&--)0. 1(!$*&(,"!23-# +2!$4!" %&'()"3 *+! -&.#() %&5,+!/ &++#6,,(#*&--)0 + .&%#/ $&--)0. 7+! #5!(&6,, AddNew , Edit -&$ -&.#(&8, %&5,+!/ .4$4" 5(!(*&-) , *)5#2-!- #"'&" -!%&*!(9!--)0 "(&-%&'6,/. 1#+2! %&'()",: +#!$,-!-,: #.;!'" CDatabase 8#<-# ,+5#23%#*&"3 $2: #"'()",: $(4=#=# ,+"#>-,'& $&--)0. BOOL IsOpen( ) const; !"#$ #5(!$!2:!", 4+"&-#*2!-# 2, +#!$,-!-,! + .&%#/ $&--)0 $2: #.;!'"& CDatabase. const CString& GetConnect ( ) const; !"#$ *#%*(&?&!" +"(#'4 5#$'2@>!-,:, ,+5#23%#*&--4@ $2: #"'()",: ,+"#>-,'& $&--)0. CString GetDatabaseName ( ) const; !"#$ *#%*(&?&!" ,8: "!'4?!/ 5#$+#!$,-!--#/ .&%) $&--)0. A"# -! #$-# , "#!-,!8 DSN, 4'&%)*&!8)8 $2: 8!"#$#* OpenEx , Open, , %&*,+," #" ODBC. 7 +24>&! *#%-,'-#*!-,: #9,.', 8!"#$ *#%*(&?&!" 54+"4@ +"(#'4.

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BOOL CanTransact( ) const; !"#$ 5#%*#2:!" #5(!$!2,"3, 8#<-# 2, ,+5#23%#*&"3 "(&-%&'6,, $2: .&%) $&--)0. void SetLoginTimeout ( DWORD dwSeconds ); !"#$ 4+"&-&*2,*&!" ,-"!(*&2 *(!8!-,, 5# ,+"!>!-,, '#"#(#=# 5#5)"'& 5#$+#!$,-!-,: ' ,+"#>-,'4 $&--)0 .4$!" #"8!-!-&. 1# 48#2>&-,@ B"# %-&>!-,! (&*-# 15 +!'4-$&8. C"8!",8, >"# -! *+! .&%) $&--)0 5#$$!(<,*&@" B"# %-&>!-,!.

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/> <PagerStyle /> <PagerTemplate> <SelectedRowStyle />

A#/$70, $#$'/,1,28(2 7$8.$323#$8 GridView 8$13$ /2+,7#0/$9,#./$%,883(8 .4#28, 0).$!-*4" 82#$+ UpdateRow. A!2+4560: ./082/ 0!!5)#/0/42# 0).$!-*$9,302 +,33$%$ 82#$+,. <%@ Page language="C#" %> <script runat="server"> void UpdateRowButton_Click(Object sender, EventArgs e) { // +), - ./$ 0# 01* $/'23/4 ,#5&(& // - "/6&./ "/0#'$&" -#7&* GridView1.UpdateRow(GridView1.EditIndex, true); } void GridView1_RowCommand(Object sender, GridViewCommandEventArgs e) { // 8/1#/. '7 5'2 UpdateRowButton 0 ($257 4 $ 19' , // /(1& ' .5 7/7$ GridView 7#: 0&$(* // - "/6&./ "/0#'$&" -#7&* switch (e.CommandName) { case "Edit": UpdateRowButton.Enabled = true; break; case "Cancel": UpdateRowButton.Enabled = false;

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break; case "Update": UpdateRowButton.Enabled = false; break; default: UpdateRowButton.Enabled = false; break; } }

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/,'00 XmlDocument !" #$%&'#() XML-*+(',-./$ *+0/$/+1.+ 234+!.)/5 0!-*'67)8 (+*: XmlDocument doc= new XmlDocument(); doc.Load("MyDataFile.xml"); Console.WrineLine(doc.InnerXml.ToString); !" #$%&'#() XML-*+(',-./$ ,+9.+ )04+!5#+2$/5 0!-*'67)- ,-/+*3; Load("),"_xml_:$8!$") LoadXml("0+*-&9$.)-_xml_*+(',-./$").

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!" 0+;&$.-.)" XML-*+(',-./$ ,+9.+ 4&),-."/5,-/+* Save("),"_:$8!$") (!$00$ XmlDocument. <$9*38 '#-! XML-*+(',-./$ 4&-*0/$2!"-/0"(!$00+, XmlNode. !" 4+0!-*+2$/-!5.+%+ *+0/'4$ (+ 20-, *+1-&.), '#!$, XML-*+(',-./$ 0!-*'-/ )04+!5#+2$/5 02+80/2+ ChildNodes (!$00$ XmlDocument. =$4&),-&: private void button2_Click(object sender, EventArgs e) { mydb1DataSet.Tbl1.WriteXml("MyDataFile.xml"); XmlDocument doc = new XmlDocument(); doc.Load("MyDataFile.xml"); int i, count; count = 0; i = 1; XmlNode node = doc.ChildNodes[1]; foreach (XmlNode node1 in node.ChildNodes) { Console.WriteLine("-------"); // !"#$%&'( )*+ ,&-. /"0+$1'+ 2 /%11"(, foreach (XmlNode node2 in node1.ChildNodes) { Console.WriteLine(doc.DocumentElement.FirstChild.ChildNodes[count] .Name + "= " + node2.FirstChild.Value); count++; } i++; count = 0; } }

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!"##$ XmlReader % XmlWriter !" &-$!)#$?)) +*.+.$4&$2!-..+%+ 1/-.)" XML-*+(',-./$ )04+!5#'6/0" (!$003, .$0!-*'-,3- +/ XmlReader: XmlTextReader – 4+#2+!"-/ 1)/$/5 XML-*+(',-./3 @-# ); 4&+2-&(); XmlValidatingReader – 4+#2+!"-/ 1)/$/5 XML-*+(',-./3 ) 4&-*+0/$2!"-/ *+0/'4 ( 0;-,- *+(',-./$.
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// 3%4'*5 %!$'#,!% writer.WriteAttributeString("xmlns", null, "urn:ReadWriteXML"); // 3%4'*5 7-+(+1!% title writer.WriteStartElement("title"); writer.WriteString("8%&)%1'+ 1"); writer.WriteEndElement(); // 3%4'*5 7-+(+1!% autor writer.WriteElementString ("autor", "'(9 1"); // 3%4'*5 7-+(+1!% price. writer.WriteElementString("price", "135");

// 3%2$.)%+( !+6 /-9 2"$1+)"6" 7-+(+1!% writer.WriteEndElement(); // 3%4'*5 XML-:%;-% ' &%2$.!'+ 4"!"2% XML-/%11.< writer.Flush(); writer.Close(); } finally { if (writer != null) writer.Close(); } } }

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A-/+* WriteStartElement (!$00$ XmlTextWriter #$4)032$-/ +/(&32$67)8 /-% #$*$2$-,+%+ B!-,-./$, $ ,-/+* WriteEndElement – #$4)032$-/ #$(&32$67/8 /-%. A-/+* WriteStartDocument #$4)032$-/ 2 .$1$!+ *+(',-./$ 0/&+(' . A-/+* WriteElementString #$4)032-/ 0),2+!5.3- *$..3- B!-,-./$.

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