The following instructions will enable you to configure Multi-Tier Data Sources for tableview connectivity: Use a text editor to open your Session Rulebook. The default Rulebook is the oplrqb.ini file found in the /bin sub-directory of your server's OpenLink installation. For example: vi /usr/lpp/openlink/bin/oplrqb.ini Locate the [Environment PROGRESSXXX] section which corresponds to your DSN's Domain or Server Type. For example: [Environment PROGRESS82A] Set the Tableview attribute to the full path to your tableview.dat file. Ensure that there is no semicolon (";") in front of the Tableview attribute name. For example: Tableview = /usr/lpp/openlink/bin/tableview.dat Save your changes and exit the file. Restart or reinitialize your Request Broker. Edit your client DSN. Remove any existing value from from the Database field in your DSN. Remove any existing value from the DB Connect Options field. Pass -pf /full/path/to/your/tableview.pf file in the DB Connect Options field. For example: -pf /usr/lpp/openlink/bin/tableview.pf Test your connection.