RCPS_MR_API_QMHDR 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: QM API Interface Structure, Header Level (for MR)" 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_MR_API_QMHDR TYPE RCPS_MR_API_QMHDR.
The RCPS_MR_API_QMHDR table consists of various fields, each holding specific information or linking keys about RMS: QM API Interface Structure, Header Level (for MR) data available in SAP. These include AENNR (Change Number), DELFLG (Deletion Indicator), RECNROOT (GUID Number), BEZUGSTP (Single-Character Indicator)... 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. .