FRMLS_STRUCT_KEY 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-FRM: Keys for Structure Part of Formula" 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_FRMLS_STRUCT_KEY TYPE FRMLS_STRUCT_KEY.
The FRMLS_STRUCT_KEY table consists of various fields, each holding specific information or linking keys about RMS-FRM: Keys for Structure Part of Formula data available in SAP. These include RECN (RMS-FRM: Object Identifier), RECNMST (Higher-Level Object Identifier), RECNROOT (Formula Header Object), RECNALGRP (RMS-FRM: Object Identifier)... 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. .