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Restore a Database to a New Location (SQL Server)

This topic describes how to restore a SQL Server database to a new location, and optionally rename the database, in SQL Server 2012 by using SQL Server Management Studio or Transact-SQL. You can move a database to a new directory path or create a copy of a database on either the same server instance or a different server instance.

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Limitations and Restrictions

  • The system administrator restoring a full database backup must be the only person currently using the database to be restored.

Prerequisites

  • Under the full or bulk-logged recovery model, before you can restore a database, you must back up the active transaction log. For more information, see Back Up a Transaction Log (SQL Server).

Recommendations

  • To restore a database that is encrypted, you must have access to the certificate or asymmetric key that was used to encrypt the database. Without the certificate or asymmetric key, the database cannot be restored. As a result, the certificate that is used to encrypt the database encryption key must be retained as long as the backup is needed. For more information, see SQL Server Certificates and Asymmetric Keys.

  • For information about additional considerations for moving a database, see Copy Databases with Backup and Restore.

  • If you restore a SQL Server 2005 or SQL Server 2008 database to SQL Server 2012, the database is automatically upgraded. Typically, the database becomes available immediately. However, if a SQL Server 2005 database has full-text indexes, the upgrade process either imports, resets, or rebuilds them, depending on the setting of the upgrade_option server property. If the upgrade option is set to import (upgrade_option = 2) or rebuild (upgrade_option = 0), the full-text indexes will be unavailable during the upgrade. Depending the amount of data being indexed, importing can take several hours, and rebuilding can take up to ten times longer. Note also that when the upgrade option is set to import, the associated full-text indexes are rebuilt if a full-text catalog is not available. To change the setting of the upgrade_option server property, use sp_fulltext_service.

Security

For security purposes, we recommend that you do not attach or restore databases from unknown or untrusted sources. Such databases could contain malicious code that might execute unintended Transact-SQL code or cause errors by modifying the schema or the physical database structure. Before you use a database from an unknown or untrusted source, run DBCC CHECKDB on the database on a nonproduction server and also examine the code, such as stored procedures or other user-defined code, in the database.

Permissions

If the database being restored does not exist, the user must have CREATE DATABASE permissions to be able to execute RESTORE. If the database exists, RESTORE permissions default to members of the sysadmin and dbcreator fixed server roles and the owner (dbo) of the database.

RESTORE permissions are given to roles in which membership information is always readily available to the server. Because fixed database role membership can be checked only when the database is accessible and undamaged, which is not always the case when RESTORE is executed, members of the db_owner fixed database role do not have RESTORE permissions.

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To restore a database to a new location, and optionally rename the database

  1. Connect to the appropriate instance of the SQL Server Database Engine, and then in Object Explorer, click the server name to expand the server tree.

  2. Right-click Databases, and then click Restore Database. The Restore Database dialog box opens.

  3. On the General page, use the Source section to specify the source and location of the backup sets to restore. Select one of the following options:

    • Database

      Select the database to restore from the drop-down list. The list contains only databases that have been backed up according to the msdb backup history.

    Note Note

    If the backup is taken from a different server, the destination server will not have the backup history information for the specified database. In this case, select Device to manually specify the file or device to restore.

    1. Device

      Click the browse (...) button to open the Select backup devices dialog box. In the Backup media type box, select one of the listed device types. To select one or more devices for the Backup media box, click Add.

      After you add the devices you want to the Backup media list box, click OK to return to the General page.

      In the Source: Device: Database list box, select the name of the database which should be restored.

      Note   This list is only available when Device is selected. Only databases that have backups on the selected device will be available.

  4. In the Destination section, the Database box is automatically populated with the name of the database to be restored. To change the name of the database, enter the new name in the Database box.

  5. In the Restore to box, leave the default as To the last backup taken or click on Timeline to access the Backup Timeline dialog box to manually select a point in time to stop the recovery action. See Backup Timeline for more information on designating a specific point in time.

  6. In the Backup sets to restore grid, select the backups to restore. This grid displays the backups available for the specified location. By default, a recovery plan is suggested. To override the suggested recovery plan, you can change the selections in the grid. Backups that depend on the restoration of an earlier backup are automatically deselected when the earlier backup is deselected.

    For information about the columns in the Backup sets to restore grid, see Restore Database (General Page).

  7. To specify the new location of the database files, select the Files page, and then click Relocate all files to folder. Provide a new location for the Data file folder and Log file folder. For more information about this grid, see Restore Database (Files Page).

  8. On the Options page, adjust the options if you want. For more information about these options, see Restore Database (Options Page).

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To restore a database to a new location, and optionally rename the database

  1. Optionally, determine the logical and physical names of the files in the backup set that contains the full database backup that you want to restore. This statement returns a list of the database and log files contained in the backup set. The basic syntax is as follows:

    RESTORE FILELISTONLY FROM <backup_device> WITH FILE = backup_set_file_number

    Here, backup_set_file_number indicates the position of the backup in the media set. You can obtain the position of a backup set by using the RESTORE HEADERONLY statement. For more information, see "Specifying a Backup Set" in RESTORE Arguments (Transact-SQL).

    This statement also supports a number of WITH options. For more information, see RESTORE FILELISTONLY (Transact-SQL).

  2. Use the RESTORE DATABASE statement to restore the full database backup. By default, data and log files are restored to their original locations. To relocate a database, use the MOVE option to relocate each of the database files and to avoid collisions with existing files.

    The basic Transact-SQL syntax for restoring the database to a new location and a new name is:

    RESTORE DATABASE new_database_name

    FROM backup_device [ ,...n ]

    [ WITH

       {

            [ RECOVERY | NORECOVERY ]

       [ , ] [ FILE ={ backup_set_file_number | @backup_set_file_number } ]

       [ , ] MOVE 'logical_file_name_in_backup' TO 'operating_system_file_name' [ ,...n ]

       }

    ;

    Note Note

    When preparing to relocate a database on a different disk, you should verify that sufficient space is available and identify any potential collisions with existing files. This involves using a RESTORE VERIFYONLY statement that specifies the same MOVE parameters that you plan to use in your RESTORE DATABASE statement.

    The following table describes arguments of this RESTORE statement in terms of restoring a database to a new location. For more information about these arguments, see RESTORE (Transact-SQL).

    new_database_name

    The new name for the database.

    Note Note

    If you are restoring the database to a different server instance, you can use the original database name instead of a new name.

    backup_device [ ,...n ]

    Specifies a comma-separated list of from 1 to 64 backup devices from which the database backup is to be restored. You can specify a physical backup device, or you can specify a corresponding logical backup device, if defined. To specify a physical backup device, use the DISK or TAPE option:

    { DISK | TAPE } = physical_backup_device_name

    For more information, see Backup Devices (SQL Server).

    { RECOVERY | NORECOVERY }

    If the database uses the full recovery model, you might need to apply transaction log backups after you restore the database. In this case, specify the NORECOVERY option.

    Otherwise, use the RECOVERY option, which is the default.

    FILE = { backup_set_file_number | @backup_set_file_number }

    Identifies the backup set to be restored. For example, a backup_set_file_number of 1 indicates the first backup set on the backup medium and a backup_set_file_number of 2 indicates the second backup set. You can obtain the backup_set_file_number of a backup set by using the RESTORE HEADERONLY statement.

    When this option is not specified, the default is to use the first backup set on the backup device.

    For more information, see "Specifying a Backup Set," in RESTORE Arguments (Transact-SQL).

    MOVE 'logical_file_name_in_backup' TO 'operating_system_file_name' [ ,...n ]

    Specifies that the data or log file specified by logical_file_name_in_backup is to be restored to the location specified by operating_system_file_name. Specify a MOVE statement for every logical file you want to restore from the backup set to a new location.

    Option

    Description

    logical_file_name_in_backup

    Specifies the logical name of a data or log file in the backup set. The logical file name of a data or log file in a backup set matches its logical name in the database when the backup set was created.

    Note Note

    To obtain a list of the logical files from the backup set, use RESTORE FILELISTONLY.

    operating_system_file_name

    Specifies a new location for the file specified by logical_file_name_in_backup. The file will be restored to this location.

    Optionally, operating_system_file_name specifies a new file name for the restored file. This is necessary if you are creating a copy of an existing database on the same server instance.

    n

    Is a placeholder indicating that you can specify additional MOVE statements.

Example (Transact-SQL)

This example creates a new database named MyAdvWorks by restoring a backup of the AdventureWorks2012 sample database, which includes two files: AdventureWorks2012 _Data and AdventureWorks2012 _Log. This database uses the simple recovery model. The AdventureWorks2012 database already exists on the server instance, so the files in the backup must be restored to a new location. The RESTORE FILELISTONLY statement is used to determine the number and names of the files in the database being restored. The database backup is the first backup set on the backup device.

Note Note

The examples of backing up and restoring the transaction log, including point-in-time restores, use the MyAdvWorks_FullRM database that is created from AdventureWorks2012 just like the following MyAdvWorks example. However, the resulting MyAdvWorks_FullRM database must be changed to use the full recovery model by using the following Transact-SQL statement: ALTER DATABASE <database_name> SET RECOVERY FULL.

USE master;
GO
-- First determine the number and names of the files in the backup.
-- AdventureWorks2012_Backup is the name of the backup device.
RESTORE FILELISTONLY
   FROM AdventureWorks2012_Backup;
-- Restore the files for MyAdvWorks.
RESTORE DATABASE MyAdvWorks
   FROM AdventureWorks2012_Backup
   WITH RECOVERY,
   MOVE 'AdventureWorks2012_Data' TO 'D:\MyData\MyAdvWorks_Data.mdf', 
   MOVE 'AdventureWorks2012_Log' TO 'F:\MyLog\MyAdvWorks_Log.ldf';
GO

For an example of how to create a full database backup of the AdventureWorks2012 database, see Create a Full Database Backup (SQL Server).

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