Course CM17 IMS DB Application Programming Unit 10 (System Service Calls)

This unit describes additional calls that an application program may require.

After completing this unit, you should be able to:

Use DL/I calls to manage database availability, handle exceptions, and provide debugging and performance data

Refer to the following links:

0:00:29 Additional programming features

0:01:07 Generalized Sequential Access Method

0:10:02 GSAM programming calls

0:13:56 Dummy I/O-PCB

0:23:08 I/O PCB

0:23:51 Checkpoint/Restart program flow

0:27:19 Checkpoint programming call

0:40:38 Restart programming call

0:41:40 Log call

0:47:44 Statistics programming call

0:48:52 SNAP call

0:49:54 Managing database availability

0:58:31 INIT ('Initialize') call

1:04:40 Exception handling

1:06:26 ROLL (Rollback and ABEND) call

1:07:31 ROLB (Rollback and no ABEND) call

1:08:41 SETS or SETU call

1:15:07 ROLS call

1:19:08 Application Interface Block

1:25:08 Using AIB Interface

1:29:38 AIB Interface only call example

1:31:36 INQY (Inquiry) call