Example: Piecemeal Restore of Database (Simple Recovery Model)

 

Applies To: SQL Server 2016

THIS TOPIC APPLIES TO: yesSQL Server (starting with 2016)noAzure SQL DatabasenoAzure SQL Data Warehouse noParallel Data Warehouse

A piecemeal restore sequence restores and recovers a database in stages at the filegroup level, starting with the primary and all read/write, secondary filegroups.

In this example, database adb is restored to a new computer after a disaster. The database is using the simple recovery model. Before the disaster, all the filegroups are online. Filegroups A and C are read/write, and filegroup B is read-only. Filegroup B became read-only before the most recent partial backup, which contains the primary filegroup and the read/write secondary filegroups, A and C. After filegroup B became read-only, a separate file backup of filegroup B was taken.

  1. Partial restore of the primary and filegroups A and C.

    RESTORE DATABASE adb FILEGROUP='A',FILEGROUP='C'   
       FROM partial_backup   
       WITH PARTIAL, RECOVERY;  
    
    
    

    At this point, the primary and filegroups A and C are online. All files in filegroup B are recovery pending, and the filegroup is offline.

  2. Online restore of filegroup B.

    RESTORE DATABASE adb FILEGROUP='B' FROM backup WITH RECOVERY;  
    
    
    

    All filegroups are now online.

Online Restore (SQL Server)
BACKUP (Transact-SQL)
RESTORE (Transact-SQL)
Piecemeal Restores (SQL Server)

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