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 - MSSQL教程

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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

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USE master  -- (Can’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 = ’x:\MSSQL\BACKUP\MyBackupFilename_Full.BAK’
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 ’MyDatabase_Data’ TO ’x:\MSSQL\DATA\MyDatabase.mdf’,
MOVE ’MyDatabase_Log’ TO ’x:\MSSQL\DATA\MyDatabase.ldf’
GO

-- Optional restore Differential Backup
RESTORE DATABASE MyDatabase
FROM DISK = ’x:\MSSQL\BACKUP\MyDatabase_Diff.BAK’
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 = ’x:\MSSQL\BACKUP\MyDatabase_yyyymmdd_hhmm_Trans.BAK’
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 = ’OrigDatabase_Data’, NEWNAME = ’MyDatabase_data’)
GO
ALTER DATABASE MyDatabase
   MODIFY FILE (NAME = ’OrigDatabase_Log’, NEWNAME = ’MyDatabase_log’)
GO

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