COMT_PROD_FRG_EXT 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 "Product Type to Set Type Assignment Table (External)" 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_COMT_PROD_FRG_EXT TYPE COMT_PROD_FRG_EXT.
The COMT_PROD_FRG_EXT table consists of various fields, each holding specific information or linking keys about Product Type to Set Type Assignment Table (External) data available in SAP. These include FRGTYPE_GUID (Internal Key of a Set Type), NO_BLUEPRINT_GEN (Logical Variable)... 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. .