Essential DL/I Functions for Efficient IMS DB Operations

The full list of DL/I functions utilized in IMS DB projects is provided below. To communicate with the IMS DB database and its components, DL/I functions are used.

DLI Functions

1. GU, GN, and GNP GHU, GHN, and GHNP – Retrieving segments from database for updating
2. DLET – Deleting segments from a database
3. REPL – Replacing segments in a database
4. ISRT – Adding segments to a database
5. ISRT – Initially loading a database
6. PCB – Scheduling a PSB
7. TERM – Terminating a PSB
8. CHKP (basic) – Issuing a basic checkpoint
9. CHKP (extended) – Issuing a symbolic checkpoint
10. XRST – Issuing an extended restart

Also read

• The basic differences of CHKP(basic) call and CHKP(extended) call
• Explained the Usage of IMS DB DL/I calls