DIOHFW_FVAL_FCODE 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 "Reference Filter value <-> Fcode" 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_DIOHFW_FVAL_FCODE TYPE DIOHFW_FVAL_FCODE.
The DIOHFW_FVAL_FCODE table consists of various fields, each holding specific information or linking keys about Reference Filter value <-> Fcode data available in SAP. These include FLT_VAL (Function codes)... 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. .