GRFN_S_STRING_SUBTY 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 "Subtype and String relation structure" 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_STRING_SUBTY TYPE GRFN_S_STRING_SUBTY.
The GRFN_S_STRING_SUBTY table consists of various fields, each holding specific information or linking keys about Subtype and String relation structure data available in SAP. These include TEXT (String)... 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. .