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set   xact_abort   on 
begin   tran 
        insert   ... 
        update   ... 
        delete   ... 
commit   tran
µÚ¶þÖÖ:
set   xact_abort   on 
begin   tran 
        insert   ... 
        if @@error<>0 rollback tran
        update   ... 
        if @@error<>0 rollback tran
        delete   ... 
        if @@error<>0 rollback tran
commit   tran
µÚÈýÖÖ:
set   xact_abort   on 
begin   tran 
        insert   ... 
        update   ... 
        delete   ... 
if @@error<>0 
rollback  tran
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commit   tran
µÚËÄÖÖ:
set   xact_abort   on 
begin   tran 
declare @ErrorSave int
        insert   ... 
        if @@error<>0  set  @ErrorSave=1
        update   ...  
      if @@error<>0  set  @ErrorSave=1
        delete   ... 
      if @@error<>0  set  @ErrorSave=1
if @ErrorSave>0 
rollback  tran
else
commit   tran
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          SQL ÖÐµÄ substring º¯ÊýÊÇÓÃÀ´×¥³öÒ»¸öÀ¸Î»×ÊÁÏÖÐµÄÆäÖÐÒ»²¿·Ö¡£Õâ¸öº¯ÊýµÄÃû³ÆÔÚ²»Í¬µÄ×ÊÁÏ¿âÖв»ÍêȫһÑù£º
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sql server 2000µÄ·ÖÒ³´æ´¢¹ý³Ì

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//getRecordfromPage.sql
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[getRecordfromPage]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[getRecordfromPage]
GO
SET QUOTED_IDENTIFIER OFF
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Student(S#,Sname,Sage,Ssex) ѧÉú±í
Course(C#,Cname,T#) ¿Î³Ì±í
SC(S#,C#,score) ³É¼¨±í
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  select a.S# from (select s#,score from SC where C#='001') a,(select s#,score
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