如何恢复数据库备份到一个已存在的正在使用的数据库上

如何恢复数据库备份到一个已存在的正在使用的数据库上

USE master -- (Can&＃146;t sit in the database whilst its being restored!)
GO

ALTER DATABASE MyDatabase SET SINGLE_USER WITH ROLLBACK IMMEDIATE
GO

-- Restore Full Backup
RESTORE DATABASE MyDatabase
FROM DISK = &＃146;x:\MSSQL\BACKUP\MyBackupFilename_Full.BAK&＃146;
WITH
REPLACE,
NORECOVERY, -- Use if more T/Logs to recover
-- RECOVERY, -- Use if NO more T/Logs to recover
STATS = 10, -- Show progress (every 10%)
MOVE &＃146;MyDatabase_Data&＃146; TO &＃146;x:\MSSQL\DATA\MyDatabase.mdf&＃146;,
MOVE &＃146;MyDatabase_Log&＃146; TO &＃146;x:\MSSQL\DATA\MyDatabase.ldf&＃146;
GO

-- Optional restore Differential Backup
RESTORE DATABASE MyDatabase
FROM DISK = &＃146;x:\MSSQL\BACKUP\MyDatabase_Diff.BAK&＃146;
WITH
-- RECOVERY -- Use if NO more file to recover
NORECOVERY -- Use if there are T/Logs to recover
GO

-- Optional restore Transaction Log Backup
RESTORE DATABASE MyDatabase
FROM DISK = &＃146;x:\MSSQL\BACKUP\MyDatabase_yyyymmdd_hhmm_Trans.BAK&＃146;
WITH
-- RECOVERY -- Use if NO more T/Logs to recover
NORECOVERY -- Use if more T/Logs to recover
GO

-- Set the database ready for use (after all backups have been restored)
RESTORE DATABASE MyDatabase RECOVERY
GO

-- Rename logical names (only needed if restoring from a backup for a Different database):
ALTER DATABASE MyDatabase
MODIFY FILE (NAME = &＃146;OrigDatabase_Data&＃146;, NEWNAME = &＃146;MyDatabase_data&＃146;)
GO
ALTER DATABASE MyDatabase
MODIFY FILE (NAME = &＃146;OrigDatabase_Log&＃146;, NEWNAME = &＃146;MyDatabase_log&＃146;)
GO