2. Architectural Highlights Of Integra4
     2.1 Standard Interface To The SQL Engine
     2.2 Gateways To Other File Systems And SQL Databases
     2.3 User Defined Functions (UDFs)

3. SQL Engine Of Integra4
     3.1 Architecture Of Integra4 SQL Engine
     3.2 Important Features of Integra4 Engine

4. 3GL Interface To Database Through C

5. ISQL - The Interactive SQL Querying Utility

6. ObjecTrieve - An ISAM File Manager