WebLogic Server Frequently Asked Questions
A. Each instance of MS SQL Server must be listening on a different port. So, you can use the port number in the properties that you pass to the
getConnection() method or, in case of connection pools, you can specify the port property in the following properties:
To find the port number where each MS SQL Server instance is running, run the server network utility (in the Microsoft SQL Server program group), select the server instance, select TCP/IP, and click the properties button.