GRFN_S_API_REG_REQ_DATA 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 "Regulation requirement data" 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_GRFN_S_API_REG_REQ_DATA TYPE GRFN_S_API_REG_REQ_DATA.
The GRFN_S_API_REG_REQ_DATA table consists of various fields, each holding specific information or linking keys about Regulation requirement data data available in SAP. These include REG_REQ_PARENT (Object ID), VALIDFROM (Start Date), VALIDTO (End Date), DESCR (Title/Short Name)... 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. .