Install a supported database product.
For a list of supported databases, see Sun Java System Application Server Platform Edition 9 Release Notes (Beta)
Install a JDBC driver for the database.
Make the driver's JAR file accessible to the domain's server instance.
Create the database.
Usually, the application provider delivers scripts for creating and populating the database.
Create a connection pool for the database.
Create a JDBC resource that points to the connection pool.