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EXEC sp_configure 'show advanced options', 1
declare @strdirname varchar(100)
declare @RemotePathstr varchar(100)
declare @LocalPathstr varchar(100)
declare @DBName char(50)
declare @sql varchar(100)
set @strdirname=replace(substring(convert(varchar(20),getdate(),120),1,10),'-','') --»ñµÃÈÕÆÚ
set @RemotePathstr = 'S:\ÆäËü·þÎñÆ÷±¸·Ý£¨ÖØÒª£©\60\center\'+'center_'+@strdirname+'.bak' --±¸·Ý·¾¶+ÃüÃû+±¸·ÝÈÕÆÚ
set @DBName= 'MMS_CENTER'
set @sql='del S:\ÆäËü·þÎñÆ÷±¸·Ý£¨ÖØÒª£©\60\center\'+'center_'+rtrim(convert(varchar,getdate()-3,112))+'.bak'
--Ìí¼ÓÍøÂçÇý¶¯Æ÷Ó³Éä
exec xp_cmdshell 'net use S: \\172.24.186.247\G$ "ÕâÀïÌîдÄãÁ¬½ÓÔ¶³Ì·þÎñÆ÷µÄÃÜÂë" /user:172.24.186.247\administrator'
--ʵʩ±¸·Ý
backup database @DBName to disk=@RemotePathstr
--ɾ³ý3ÌìǰµÄ±¸·ÝÎļþ
exec xp_cmdshell @sql
--ɾ³ýÓ³Éä
exec xp_cmdshell 'net use S: /delete'
RECONFIGURE
EXEC sp_configure 'show advanced options', 0
RECONFIGURE


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use master
go
--Çл»masterÊý¾Ý¿â
if exists(select 1 from sysdatabases where name = N'test')
--×¢Òâ¸ÃͬÃûÊý¾Ý¿âÊÇ·ñ»¹ÒªÓõ½
begin
drop database test
end
go
create database test
on
primary
( name = 'testprimary', --Ö÷Êý¾ÝÎļþÂß¼­Ãû
filename = 'D:\testprimary.mdf',--Ö÷Êý¾ÝÎļþ´æ·Å·¾¶
......

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use master
go
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1. µ±Ç°ÏµÍ³ÈÕÆÚ¡¢Ê±¼ä
select getdate()
2. dateadd ÔÚÏòÖ¸¶¨ÈÕÆÚ¼ÓÉÏÒ»¶Îʱ¼äµÄ»ù´¡ÉÏ£¬·µ»ØÐ嵀 datetime Öµ
ÀýÈ磺ÏòÈÕÆÚ¼ÓÉÏ2Ìì
select dateadd(day,2,'2004-10-15') --·µ»Ø£º2004-10-17 00:00:00.000
3. datediff ·µ»Ø¿çÁ½¸öÖ¸¶¨ÈÕÆÚµÄÈÕÆÚºÍʱ¼ä±ß½çÊý¡£
select datediff(day,'2004-09-01','2004-09-18') --· ......

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CONVERT(data_type(length),data_to_be_converted,style)
data_type(length) ¹æ¶¨Ä¿±êÊý¾ÝÀàÐÍ£¨´øÓпÉÑ¡µÄ³¤¶È£©¡£data_to_be_converted º¬ÓÐÐèҪת»»µÄÖµ¡£styl ......
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