关于数据库SQL备份和还原

本方法是将数据库备份到本地磁盘

备份：

use master
Exec sp_addumpdevice 'disk','B2CSystem','d:\DB\myBck.bck'
--创建备份设备
Backup database B2CSystem to B2CSystem
--执行备份

 

还原：

use master

RESTORE DATABASE B2CSystem FROM DISK='d:\DB\myBck.BAK'

注意：因为数据不是独占打开.可能用到下面的过程

 1: --Kill掉访问某个数据库的连接

   2: CREATE PROC KillSpid(@DBName varchar)

   3: AS

   4: BEGIN

   5:     DECLARE @SQL varchar

   6:     DECLARE @SPID int

   7:     SET @SQL='DECLARE CurrentID CURSOR FOR 

   8:     SELECT spid FROM sysprocesses WHERE dbid=db_id('''+@DBName+''') '

   9:     FETCH NEXT FROM CurrentID INTO @SPID

  10:     WHILE @@FETCH_STATUS <>-1

  11:     BEGIN

  12:         exec('KILL '+@SPID)

  13:         FETCH NEXT FROM  CurrentID INTO @SPID

  14:     END

  15:     CLOSE CurrentID

  16:     DEALLOCATE CurrentID

  17: END