Muokkaa

Jaa

Move an Analysis Services Database

  • Artikkeli

Applies to: SQL Server Analysis Services Azure Analysis Services Fabric/Power BI Premium

There are often situations when an SQL Server Analysis Services database administrator (dba) wants to move a multidimensional or tabular model database to a different location. These situations are often driven by business needs, such as moving the database to a different disk for better performance, gaining room for database growth, or to upgrade a product.

A database can be moved in many ways. This document explains the following common scenarios:

  • Interactively using SSMS

  • Programmatically using AMO

  • By script using XMLA

All scenarios require the user to access the database folder and to use a method for moving the files to the desired final destination.

Note

Detaching a database without assigning a password to it leaves the database in an unsecured state. We recommend assigning a password to the database to protect confidential information. Also, the corresponding access security should be applied to the database folder, sub-folders, and files to prevent unauthorized access to them.

Procedures

Moving a database interactively using SSMS

  1. Locate the database to be moved in the left or right pane of SSMS.

  2. Right-click on the database and select Detach...

  3. Assign a password to the database to be detached, then click OK to execute the detach command.

  4. Use any operating system mechanism or your standard method for moving files to move the database folder to the new location.

  5. Locate the Databases folder in the left or right pane of SSMS.

  6. Right-click on the Databases folder and select Attach...

  7. In the folder text box, type the new location of the database folder. Alternatively, you can use the browse button (...) to locate the database folder.

  8. Select the ReadWrite mode for the database.

  9. Type the password used in step 3 and click OK to execute the attach command.

Moving a database programmatically using AMO

  1. In your C# application, adapt the following sample code and complete the indicated tasks.

private void MoveDb(Server server, string dbName,

string dbInitialLocation, string dbFinalLocation,

string dbPassword, ReadWriteMode dbReadWriteMode)

{

//Verify dbInitialLocation exists before continuing

if (server.Databases.ContainsName(dbName))

{

Database db;

//Save current cursor and change cursor to Cursors.WaitCursor

db = server.Databases[dbName];

db.Detach(dbPassword);

//Add your own code to copy the database files to the destination where you intend to attach the database

//Verify dbFinalLocation exists before continuing

server.Attach(dbFinalLocation, dbReadWriteMode, dbPassword);

//Restore cursor to its original

}

}

  1. In your C# application, invoke MoveDb() with the necessary parameters.

  2. Compile and execute your code to move the database.

Moving a database by script using XMLA

  1. Open a new XMLA tab in SSMS.

  2. Copy the following script template for XMLA

<Detach xmlns="http://schemas.microsoft.com/analysisservices/2003/engine">

<Object>

<DatabaseID>%dbName%</DatabaseID>

<Password>%password%</Password>

</Object>

</Detach>

  1. Replace %dbName% with the name of the database and %password% with the password. The % characters are part of the template and must be removed.

  2. Execute the XMLA command.

  3. Use any operating system mechanism or your standard method for moving files to move the database folder to the new location.

  4. Copy the following script template for XMLA in a new XMLA tab

<Attach xmlns="http://schemas.microsoft.com/analysisservices/2003/engine">

<Folder>%dbFolder%</Folder>

<ReadWriteMode xmlns="http://schemas.microsoft.com/analysisservices/2008/engine/100">%ReadOnlyMode%</ReadWriteMode>

</Attach>

  1. Replace %dbFolder% with the complete UNC path of the database folder, %ReadOnlyMode% with the corresponding value ReadOnly or ReadWrite, and %password% with the password. The % characters are part of the template and must be removed.

  2. Execute the XMLA command.

See Also

Attach and Detach Analysis Services Databases
Database Storage Location
Database ReadWriteModes
Attach Element
Detach Element
ReadWriteMode Element
DbStorageLocation Element