RM60STRING 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 "Output characteristic values combinatn" 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_RM60STRING TYPE RM60STRING.
The RM60STRING table consists of various fields, each holding specific information or linking keys about Output characteristic values combinatn data available in SAP. These include ATWTB (Charact. values combination/key for planning variants)... 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. .