Application
In the DBCAREA, the application supplies the session id and request id, if they have changed since the DBCAREA was last used, and sets the function code to DBFERQ. It then calls DBCHCL.
In the DBCAREA, the application supplies the session id and request id, if they have changed since the DBCAREA was last used, and sets the function code to DBFERQ. It then calls DBCHCL.