Informatica stores data and metadata in repositories in the domain. Before you create the application services, set up the databases and database user accounts for the repositories associated with the application services.
Set up a database and user account for the following repositories:
Data object cache repository
Metadata Manager repository
Reference data warehouse
To prepare the databases, verify the database requirements and set up the database. The database requirements depend on the application services that you create in the domain and the number of data integration objects that you build and store in the repositories.