The Administrative Console can be used to configure a login alias for the Oracle data sources as follows:
Navigate to Security -> Global Security.
Expand the Java Authentication and Authorization Service option in the Authentication section and select the J2C authentication data option.
Click New to open the Configuration screen.
Set the following fields:
Alias = CuramReporting
User ID = <database username>
Password = <database password>
Description = The database security alias where <database username> and <database password> are set to the username and password used to login to the database.