Hi Hari,
This link may be if interest
Creation of DB connect source system - SAP NetWeaver Business Warehouse - SCN Wiki
Result
IDoc basic types, port descriptions, and partner agreements are created. When you use the created destinations, the ALE settings, which are necessary for communication between a BW system and an external system, are created in BW in the background. The settings are stored in the table DBCON. You can use transaction DBCO to display the content of this table.
Please don't forget to record your final solution and to mark the question as answered.
Good luck,
John Hawk