Installing SSMA components on SQL Server (OracleToSQL)

In addition to installing SSMA, you must also install components on the computer that is running SQL Server. These components include the SSMA extension pack, which supports data migration, and Oracle providers to enable server-to-server connectivity.

SSMA for Oracle extension pack

The SSMA extension pack adds the sysdb and ssmatesterdb databases to the specified instance of SQL Server. The database sysdb contains the tables and stored procedures required to migrate data and the user-defined functions that emulate Oracle system functions. The ssmatesterdb database contains the tables and procedures required by the Tester component.

Also, when you migrate data to SQL Server, SSMA creates SQL Server Agent jobs when the server-side data migration engine is used for migrating the data.


Before you install the SSMA for Oracle server components on SQL Server, make sure that the system meets the following requirements:

  • SQL Server instance is installed. SSMA doesn't support SQL Server 2008 Express Edition.

  • Microsoft Windows Installer 3.1 or a later version.

  • The Oracle Client Provider or the OLE DB provider for Oracle, and connectivity to the Oracle database that you want to migrate. You can install providers from the Oracle product media or Oracle Web site.

  • The SQL Server Browser service must be running during installation. This is used to populate a list of the instances of SQL Server in the Setup wizard. You can disable the SQL Server Browser service after installation.


    If the SQL Server Browser service is running, but you still do not see a list of instances in Setup, you must unblock UDP port 1434. You can use Windows Firewall to temporarily unblock the port, or you can temporarily disable Windows Firewall. You might also have to temporarily disable antivirus software. Make sure to enable firewalls and antivirus software after installation.

Installing the extension pack

You can install the extension pack anytime before you migrate data to SQL Server.


To install the extension pack, you must be a member of the sysadmin server role on the instance of SQL Server.

To install the extension pack

  1. If you haven't already, extract all files from the SSMA Zip file.

    Depending on the version of WinZip you have, you can either double-click the file, or right-click the file and then select Extract All or Open in WinZip. Follow the instructions in the WinZip user interface to extract the files.

  2. Copy SSMA for Oracle Extension Pack.n.Install.exe (where n is the build number) to the computer that is running SQL Server.

  3. Double-click SSMA for Oracle Extension Pack.n.Install.exe.

  4. On the Welcome page, select Next.

  5. On the End User License Agreement page, read the license agreement. If you agree, select the I accept the terms in the license agreement check box, and then select Next.

  6. On the Choose Setup Type page, select Typical.

  7. On the Ready to Install page, select Install.

  8. On the Completed the First Step of Installation page, select Next.

    A new dialog box will appear, in which you select the instance of SQL Server for the extension pack installation.

  9. Select the instance of SQL Server to which you'll be migrating Oracle schemas, and then select Next.

    The default instance has the same name as the computer. Named instances will be followed by a backslash and the instance name.

  10. On the connection page, select the authentication method and then select Next.

    Windows Authentication will use your Windows credentials to try to sign in to the instance of SQL Server. If you select SQL Server Authentication, you must enter a SQL Server login name and password.

  11. On the next page, select Install Utilities Database n, where n is the version number, and then select Next.

    The sysdb database is created and the user-defined functions and stored procedures are created in that database.

    If Install Tester Database option is checked, the tester ssmatesterdb database will be created.

  12. To install the utilities to another instance of SQL Server, select Yes, and then select Next, or to exit the wizard, select No.

  13. In SQL Server Management Studio or by using the sqlcmd utility, run the following script to enable CLR:

    sp_configure 'clr enabled', 1  

    If CLR isn't enabled, you'll receive the following error when SSMA connects to SQL Server:

    SSMA could not retrieve the extension pack assembly version information. Reinstall the extension pack on the database server.

SQL Server database objects

After you install the extension pack, an ssma_oracle.bcp_migration_packages table appears in the sysdb database.

Every time you migrate data to SQL Server, SSMA creates a SQL Server Agent job. These jobs are named ssma_oracle data migration package {GUID}, and are visible in the SQL Server Agent node of SQL Server Management Studio in the Jobs folder.

See also

Installing SSMA for Oracle Client (OracleToSQL)
Migrating Oracle Databases to SQL Server (OracleToSQL)