DBCC CHECKDB(数据库名)
/***********************************************************
** CREATE BACKUP AND RESTORE DEVICES
************************************************************/
IF @RC=0
BEGIN
exec sp_addumpdevice 'disk', @DevName_log,@log_path
select @rc=@@error
IF @RC<>0
begin
EXEC SP_DropDevice @Devname_data
exec sp_dropdevice @devname_log
SELECT @RC=-1000
return @rc
end
END
IF @kind='backup'
BEGIN
IF @bakequip=0
BEGIN
IF @baktype=0
BEGIN
IF @bakdb=0
BEGIN
BACKUP DATABASE 数据库名 TO DISK=@Devname_data
WITH INIT
END
IF @baklog=0
BEGIN
BACKUP LOG 数据库名 WITH NO_LOG
BACKUP LOG 数据库名 TO DISK=@DevName_log
WITH INIT,NO_TRUNCATE
END
END
ELSE BEGIN
IF @bakdb=0
BEGIN
BACKUP DATABASE 数据库名 TO DISK=@DevName_data
WITH NOINIT
END
IF @baklog=0
BEGIN
BACKUP LOG 数据库名 WITH NO_LOG
BACKUP LOG 数据库名 TO DISK=@DevName_log
WITH NOINIT,NO_TRUNCATE
END
END
END
SELECT @retmsg='数据库备份成功!'
END
IF @kind='restore'
BEGIN
RESTORE DATABASE 数据库名 FROM DISK= @DevName_data WITH REPLACE
SELECT @retmsg='恢复数据库成功!'
END
B. 还原完整数据库备份和差异备份
下例还原完整数据库备份后还原差异备份。另外,下例还说明如何还原媒体上的另一个备份集。差异备份追加到包含完整数据库备份的备份设备上。
RESTORE DATABASE MyNwind
FROM MyNwind_1
WITH NORECOVERY
RESTORE DATABASE MyNwind
FROM MyNwind_1
WITH FILE = 2
C. 使用 RESTART 语法还原数据库
下例使用 RESTART 选项重新启动因服务器电源故障而中断的 RESTORE 操作。
-- This database RESTORE halted prematurely due to power failure.
RESTORE DATABASE MyNwind
FROM MyNwind_1
-- Here is the RESTORE RESTART operation.
RESTORE DATABASE MyNwind
FROM MyNwind_1 WITH RESTART
D. 还原数据库并移动文件
下例还原完整数据库和事务日志,并将已还原的数据库移动到 C:\Program Files\Microsoft SQL Server\MSSQL\Data 目录下。
RESTORE DATABASE MyNwind
FROM MyNwind_1
WITH NORECOVERY,
MOVE 'MyNwind' TO 'c:\Program Files\Microsoft SQL Server\MSSQL\Data\NewNwind.mdf',
MOVE 'MyNwindLog1' TO 'c:\Program Files\Microsoft SQL Server\MSSQL\Data\NewNwind.ldf'
RESTORE LOG MyNwind
FROM MyNwindLog1
WITH RECOVERY
BACKUP DATABASE Northwind
TO DISK = 'c:\Northwind.bak'
RESTORE FILELISTONLY
FROM DISK = 'c:\Northwind.bak'
RESTORE DATABASE TestDB
FROM DISK = 'c:\Northwind.bak'
WITH MOVE 'Northwind' TO 'c:\test\testdb.mdf',
MOVE 'Northwind_log' TO 'c:\test\testdb.ldf'
GO
RESTORE DATABASE MyNwind
FROM MyNwind_1, MyNwind_2
WITH NORECOVERY
RESTORE LOG MyNwind
FROM MyNwindLog1
WITH NORECOVERY
RESTORE LOG MyNwind
FROM MyNwindLog2
WITH RECOVERY, STOPAT = 'Apr 15, 1998 12:00 AM'
G. 使用 TAPE 语法还原
下例显示从 TAPE 备份设备还原完整数据库备份。
RESTORE DATABASE MyNwind
FROM TAPE = '\\.\tape0'
H. 使用 FILE 和 FILEGROUP 语法还原
下例还原一个包含两个文件、一个文件组和一个事务日志的数据库。
RESTORE DATABASE MyNwind
FILE = 'MyNwind_data_1',
FILE = 'MyNwind_data_2',
FILEGROUP = 'new_customers'
FROM MyNwind_1
WITH NORECOVERY
-- Restore the log backup.
RESTORE LOG MyNwind
FROM MyNwindLog1
I. 将事务日志还原到标记处
下例显示将事务日志还原到名为"RoyaltyUpdate"的标记处。
BEGIN TRANSACTION RoyaltyUpdate
WITH MARK 'Update royalty values'
GO
USE pubs
GO
UPDATE roysched
SET royalty = royalty * 1.10
WHERE title_id LIKE 'PC%'
GO
COMMIT TRANSACTION RoyaltyUpdate
GO
--Time passes. Regular database
--and log backups are taken.
--An error occurs.
USE master
GO
RESTORE DATABASE pubs
FROM Pubs1
WITH FILE = 3, NORECOVERY
GO
RESTORE LOG pubs
FROM Pubs1
WITH FILE = 4,
STOPATMARK = 'RoyaltyUpdate'