RCPS_API_GUID_REL 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 "RMS-RCP: API Structure for Reading Several Relationships" 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_RCPS_API_GUID_REL TYPE RCPS_API_GUID_REL.
The RCPS_API_GUID_REL table consists of various fields, each holding specific information or linking keys about RMS-RCP: API Structure for Reading Several Relationships data available in SAP. These include OTYPE (iPPE Object Type), GUID_ROOT (Internal Identification for PVS Objects)... 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. .