A JDBC resource (data source) provides applications with a means of connecting to a database.
Before creating a JDBC resource, first create a JDBC connection pool.
When creating a JDBC resource, you must identify:
The JNDI Name. By convention, the name begins with the jdbc/ string. For example: jdbc/payrolldb. Don’t forget the forward slash.
Select a connection pool to be associated with the new JDBC resource.
Specify the settings for the resource.
Identify the targets (clusters and standalone server instance) on which the resource is available.