DB Connect Architecture 

The multiconnect functions that are delivered as a SAP NetWeaver component allow you to open extra database connections in addition to the SAP default connection and use these connections to access external databases. 

For more information, see SAP Note 323151 – Multiple DB Connections with Native SQL.

You can also use DB Connect to establish a connection of this type as a source system connection to BI. The DB Connect enhancements to the database interface allow you to transfer data straight into BI from the database tables or views of external applications.

For the default connection, DB Client and DBSL are preinstalled for the database management system. If you want to use DB Connect to transfer data into the BI system from other database management systems, you need to install both the database-specific DB Client and the database-specific DBSL on the BI application server that you are using to run DB connect.

In the following graphic, the BI system runs on DBMS Y. Therefore you do not need to install DBSL and DB Client for the source DBMS Y. However, if you want to load data from a DBMS X table or view, you have to install DBSL and DB Client for DBMS X.