PRPS_UPDATE_RELEVANT is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Fields from PRPS (sim.vers.) that are relevant to the update" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_PRPS_UPDATE_RELEVANT TYPE PRPS_UPDATE_RELEVANT.
The PRPS_UPDATE_RELEVANT table consists of various fields, each holding specific information or linking keys about Fields from PRPS (sim.vers.) that are relevant to the update data available in SAP. These include POSID (Work Breakdown Structure Element (WBS Element)), POST1 (PS: Short description (1st text line)), POSKI (WBS element short identification), VERNR (Number of the responsible person (project manager))... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .