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DECLARE  @sql varchar(8000)  
--ÏÂÃæÊÇɾ³ý15ÌìÇ°±¸·ÝÎļþµÄ´¦Àí  
set @sql='Del E:\Databasebackup\'  
@sql=@sql +rtrim(convert(varchar,getdate()-15,112))+'.bak'
Exec  master..xp_cmdshell   @sql  
DECLARE @DelFile Varchar(256)
set @DelFile='Del E:\Databasebackup\'
set @DelFile=@DelFile+'shya_DATA_'+Replace(convert(varchar(10),getdate()-28,120),'-','_')
Exec  master..xp_cmdshell  @DelFile
--ÅжÏÎļþÊÇ·ñ´æÔÚ
create table ##tb(a bit,b bit,c bit)
DECLARE @sql Varchar(256)
set @sql='E:\Databasebackup'+'shya_DATA_'+Replace(convert(varchar(10),getdate()-28,120),'-','_')
insert into ##tb
exec master..xp_fileexist @sql
--Îļþ´æÔÚÔòɾ³ý
if exists(select 1 from ##tb where a=1)
begin
DECLARE @DelFile Varchar(256)
set @DelFile='Del E:\Databasebackup\'
set @DelFile=@DelFile+'shya_DATA_'+Replace(convert(varchar(10),getdate()-28,120),'-','_')
Exec  master..xp_cmdshell  @DelFile
end
drop table ##tb
---×îдúÂë
--ÅжÏÎļþÊÇ·ñ´æÔÚ
create table ##tb(a bit,b bit,c bit)
DECLARE @DelFile Varchar(256)
set @DelFile='E:\Databasebackup\'
set @DelFile=@DelFile+'shya_DATA_'+Replace(convert(varchar(10),getdate()-28,120),'-','_')
insert into ##tb
exec master..xp_fileexist @DelFile
--Îļþ´æÔÚÔòɾ³ý
if exists(select 1 from ##tb where a=1)
begin
DECLARE @Delsql Varchar(256)
set @Delsql='Del '+ @DelFile
Exec  master..xp_cmdshell  @Delsql
end
drop table ##tb


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ÔÚʹÓÃSQL ServerÊý¾Ý¿âʱ, Èç¹ûÐèÒª·ÃÎÊÔ¶³ÌµÄÁíÍâÒ»¸öÊý¾Ý¿â, ÄÇô¿ÉÒÔʹÓÃLinked ServerÀ´ÊµÏÖÕâ¸ö¹¦ÄÜ, ºÜ·½±ã. ±¾ÎÄ×ܽáÁË×Ô¼ºÔÚʹÓÃLinked Server¹¦ÄÜʱÓöµ½µÄ¼¸¸öÎÊÌâ, Èç¹ûÉÔ²»×¢Òâ,ºÜ¿ÉÄܳöÏÖ¸÷ÖÖ´íÎó.
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declare @CausName as char(20) declare @causenameid as int declare
@Description as varchar(200) declare @Caus_Id as int
declare @sign as char(20)
create table #tb ( Caus_Id int,CausName varchar(20),causNameid int,Caus_Description varchar(200),±êÖ¾ varchar(20))
 
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