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 21 Ò»¸öSQLServerµÄ×Ô¶¨Ò庯ÊýÖе÷ÓÃÒ»¸ö×Ô¶¨ÒåµÄ´æ´¢¹ý³Ì£¬Ö´Ðд˺¯Êýºó·¢³öÈçÏÂÌáʾ£º“Ö»Óк¯ÊýºÍÀ©Õ¹´æ´¢¹ý³Ì²ÅÄÜ´Óº¯ÊýÄÚ²¿Ö´ÐÐ"¡£
 Ô­Òò£ºº¯ÊýÖ»ÄÜʹÓüòµ¥µÄsqlÓï¾ä,Âß¼­¿ØÖÆÓï¾ä£¬¸´ÔÓÒ»µãµÄ´æ´¢¹ý³ÌÊDz»Äܵ÷Óõģ¬ÔÚº¯ÊýÀïÒ²²»ÄÜʹÓÃexecute  sp_executesql  »òÕßexecute ¡£½â¾ö·½·¨°Ñº¯Êý¸ÄΪ´æ´¢¹ý³Ì£¬È»ºóÔÚÁíÒ»¸ö´æ´¢¹ý³ÌÖÐÏóµ÷Óú¯ÊýÒ»ÑùʹÓô˴洢¹ý³Ì¾Í¿ÉÒÔÁË¡£
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 --´æ´¢¹ý³Ìsp_B 
  create  proc  sp_B 
  @A  int  ,   
  @B  int  ,  
  @C  int  output  
  AS 
  
  set  @C  =  @A  +  @B 
  go  
  
  --´æ´¢¹ý³Ìp_A 
  create  proc  sp_A  
  @A  int  ,   
  @B  int  
  as  
  declare   @C  int  
  exec  sp_B  @A  ,  @B  ,  @C  output  
  print  @C  
  go  
  --²âÊÔ
  exec  sp_A   3  ,  5 
 22. ÔõÑùÖ´Ðдø²ÎÊýµÄSQLÓï¾ä£¬±ÈÈç˵×Ö¶ÎÊÇÒ»¸ö²ÎÊý£¬ÈçºÎд´æ´¢¹ý³Ì£¿ÊµÀýÈçÏ£º
 Create  proc [dbo].[jsxs]
 (
 @zb varchar(5),
 @nr varchar(4),
 @ID int,
 @shu int output
 )
 AS
 BEGIN
 declare @sqls nvarchar(1000)--×¢Òâ´ËÀàÐÍ
 if @nr='A'
 set @zb=@zb+'1'
 if @nr='B'
 set @zb=@zb+'2'
 if @nr='C'
 set @zb=@zb+'3'
 if @nr='D'
 set @zb=@zb+'4'
 if @nr='E'
 set @zb=@zb+'5'
 ----------------------------------Ö÷Ìⲿ·Ö------------------------------------
 set @sqls='select @a=' +@zb + ' from shumu where peID=' +cast(@ID as char)
 exec sp_executesql
 @sqls,
 N'@a int output',@sh


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select * from Exception_Log where DATEDIFF(day,OPER_DATE,getdate())<30 ;
/*
oper_date Ϊ±íÖвéѯ³öÀ´µÄʱ¼ä
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¼Ç¼һÏÂÒÔ±¸Ï´οìËÙÕÒµ½¡£¡£¡£
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--oracle
declare   a NUMBER(10);
   begin
   select  max(wo ......
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