通过SQL语句来备份,还原数据库

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通过SQL 语句备份数据库
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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
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通过SQL语句还原数据库
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USE master
RESTORE DATABASE mydb
FROM DISK='C:\DBBACK\mydb.BAK'
WITH REPLACE

--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

SP_DBOPTION @DBName,'single user','true'