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_Sql Server

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

2019-10-25 15:29mssql教程网 Sql Server

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’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