The test data warehouse repository is a relational database that stores the source table metadata and the TDM metadata that you create when you create a data set.

Set up the database before you create the Test Data Warehouse Service. Allocate 35 MB or more space based on the number of objects you plan to store. You can create a test data warehouse repository on the following databases:

IBM DB2 UDB
Microsoft SQL Server
Oracle
PostgreSQL

For more information about configuring the database, see the documentation for your database system.