通过SQL语句来备份,还原数据库
这里仅仅用到了一种方式而已,把数据库文件备份到磁盘然后在恢复.
eg:代码如下:
/*
通过SQL 语句备份数据库
*/
BACKUP DATABASE mydb
TO DISK ='C:\DBBACK\mydb.BAK'
--这里指定需要备份数据库的路径和文件名,注意:路径的文件夹是必须已经创建的.文件名可以使用日期来标示
/*
通过SQL语句还原数据库
*/
USE master
RESTORE DATABASE mydb
FROM DISK='C:\DBBACK\mydb.BAK'
WITH REPLACE
注意:很多时候不能直接还原,因为数据不是独占打开.可能用到下面的过程
代码如下:
--Kill掉访问某个数据库的连接
CREATE PROC KillSpid(@DBName varchar)
AS
BEGIN
DECLARE @SQL varchar
DECLARE @SPID int
SET @SQL='DECLARE CurrentID CURSOR FOR
SELECT spid FROM sysprocesses WHERE dbid=db_id('''+@DBName+''') '
FETCH NEXT FROM CurrentID INTO @SPID
WHILE @@FETCH_STATUS -1
BEGIN
exec('KILL '+@SPID)
FETCH NEXT FROM CurrentID INTO @SPID
END
CLOSE CurrentID
DEALLOCATE CurrentID
END
当kill掉用户后最好使用单用户操作数据库
代码如下:
SP_DBOPTION @DBName,'single user','true'

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