PeopleSoft Programming Fundamentals

In PeopleSoft, the Menu item definition allows you to specify a different search record, which overrides the component's default search record. This provides a way to change component behavior at the menu level.

PeopleSoft uses the PSRELEASE table to track object versions and changes. This system table maintains version information for PeopleTools objects to support change tracking and application upgrades.

PeopleSoft reserves message catalog numbers 1 through 9999 for its own system use. Custom message sets should start from 10000 to avoid conflicts with PeopleSoft's internal messages.

PeopleCode supports various data types including Object, Number, and Date. TIMESTAMP is not a native PeopleCode data type - date/time values use the Date type with time components, or datetime.

In PeopleSoft architecture, connectivity software (Tuxedo) must be installed on servers that communicate with the client. The batch server (PSAPPSRV) handles batch processes and requires connectivity software to receive requests from clients and other servers. File servers and web servers don't run application server processes, while Query Server is not a standard PeopleSoft server component.

PSDAEMON is the Tuxedo server process that schedules and runs Application Engine programs at frequencies less than daily (e.g., hourly, minutely). PSAppsrv handles online transactions, PSAESRV runs AE programs on-demand, and PSQCKSRV is for quick queries. Only PSDAEMON manages recurring schedules.

PSAPPSRV.CFG is the master configuration file for a PeopleSoft application server domain. It contains all domain settings including connection parameters, server process counts, and domain characteristics. PSPRCS.CFG is for process scheduler, PSNTSRV.CFG doesn't exist as a standard file, and PSAPPDOM.CFG is not a valid configuration filename.

For an Application Engine program to be restartable after failure, the 'Disable Restart' checkbox on Program Properties must be unchecked. The state record must be a physical table (not derived/work), and auto-commits should generally be removed, but the critical enablement is deselecting Disable Restart. The Do Select action being restartable is necessary but not sufficient without this setting.