Copy-only backup是一种独立于传统SQL Backup方法的一种备份方式. 一般来说, 做一次数据库备份会影响到后面的备份和还原作业. 然而, 有时你需要为了某个特殊的目的而做一次备份但却不想影响到你数据库原有的backup和restore的计划. Copy-only backup就是为这种目的而服务的. 一般来说, 当你为数据库做一个backu...
Fortunately in SQL Server 2005 and onwards we have a backup option for such a situation. This backup option is known asCopy Onlybackups. This option is specifically for creating an ad hoc backup that will not disturb the planned restore sequence for that database. Copy Only backups can be ...
The LSN’s of any differential backups taken after the new ad hoc backup still refer to the original full backup, not to the impostor. Hurrah! The duck family is still united! How to take a copy-only backup To take a copy-only backup in SQL Server Management Studio, navigate to the...
Copy-only backups are recorded in theis_copy_onlycolumn of thebackupsettable. To Create a Copy-Only Backup You can create a copy-only backup by using SQL Server Management Studio, Transact-SQL, or PowerShell. Using SQL Server Management Studio ...
At this point your restore will fail and the database will be in a LOADING mode. To test the same process out, but this time using the COPY_ONLY option, you can run the commands below. -- step 1USEmaster GOBACKUPDATABASEAdventureWorksTODISK='c:\AdventureWorks_full.BAK'WITHINITBACKUPLOG ...
If False (default), the backup is not a copy-only backup, and is part of the usual sequence of backups. 注释 A copy-only backup does not affect your overall backup and restore procedures for the database. Copy-only backups were introduced in SQL Server 2005 for use in situations in ...
BACKUP DATABASE TSQL TO DISK = 'R:\TSQL.BAK' WITH INIT --For reference, this is now the only backup in the file. BACKUP DATABASE TSQL TO DISK = 'R:\TSQL.BAK' WITH NOINIT, COPY_ONLY --This does *not* overwrite the previous backup RESTORE HEADERONLY FROM DISK = 'R:\TSQL.bak' ...
Differential backups Partial backups Tail-log backups Copy-only backups Transaction log System databases VSS & SQL Writer SQL Writer Logging Configuration Restore & recovery Reference Always On availability groups Always On failover cluster instance ...
COPY_ONLY FULL backups can not be used as the base to restore differentials. Ie we can’t restore a COPY_ONLY full backup, then restore a differential on top of it. It doesn’t say anything about logs, though, so that should be possible, but let’s test that in a minute. ...
Wrong - COPY_ONLY is not available when using the GUI in SSMS 2005, however - you can still perform copy only backups using the BACKUP command directly. Actually, it is just not supported when using the Backup Database task in the maintenance plans. You can always use an Execute SQL Ta...