System service requests

I/O PCB
A PSB used in a DBCTL environment can contain any of these PCB types.
Format of a PSB
PCB summary
This section summarizes information concerning I/O PCBs and alternate PCBs in the supported environments.
PSB schedule command and call
DEQ command and call
LOG command and call
You can use the LOG request online when you want a record to be written from an application program to the IMS log.
Defining intermediate backout points for DBCTL resources

Parent topic: Facilities available with DBCTL