用dos命令备份和恢复sql server 数据库

这里是批处理命令-----备份的

delete d:restorecw_ft.bak
delete d:restorecw_sd.bak
sqlcmd -i "bak.sql"

这是sqlcmd 备份的  
:connect .
BACKUP DATABASE cw_ft TO DISK = 'd:
estorecw_ft.bak' WITH INIT 
go
BACKUP DATABASE cw_sd TO DISK = 'd:
estorecw_sd.bak' WITH INIT 
go

这是批处理---恢复的
sqlcmd -i "restore.sql"

这是sqlcmd    恢复的

:connect .
USE master
GO
ALTER DATABASE [cw_ft] SET SINGLE_USER WITH ROLLBACK IMMEDIATE
GO
--查看是否还有用户连接
--SELECT * FROM sys.[sysprocesses] WHERE DB_NAME([dbid])='cw_ft'
--GO
ALTER DATABASE [cw_ft] SET MULTI_USER 
GO
RESTORE DATABASE [cw_ft] FROM  DISK = N'd:
estorecw_ft.bak' WITH  FILE = 1,  NOUNLOAD,  REPLACE,  STATS = 10
go

ALTER DATABASE [cw_sd] SET SINGLE_USER WITH ROLLBACK IMMEDIATE
GO
--查看是否还有用户连接
--SELECT * FROM sys.[sysprocesses] WHERE DB_NAME([dbid])='cw_sd'
--GO
ALTER DATABASE [cw_sd] SET MULTI_USER 
GO
RESTORE DATABASE [cw_sd] FROM  DISK = N'd:
estorecw_sd.bak' WITH  FILE = 1,  NOUNLOAD,  REPLACE,  STATS = 10
go