GRAC_RS_REQACTION 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 "Request action" 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_GRAC_RS_REQACTION TYPE GRAC_RS_REQACTION.
The GRAC_RS_REQACTION table consists of various fields, each holding specific information or linking keys about Request action data available in SAP. These include OPTION (OPTION field in structure of SELECT-OPTIONS tables), LOW (Request Action), HIGH (Request Action)... 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. .