REFKEY_OLD_RANGE 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 "Origin of Data (Correction of Invalid Tax Lines)" 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_REFKEY_OLD_RANGE TYPE REFKEY_OLD_RANGE.
The REFKEY_OLD_RANGE table consists of various fields, each holding specific information or linking keys about Origin of Data (Correction of Invalid Tax Lines) data available in SAP. These include OPTION (Selection operator OPTION for range tables), LOW (Source of Data), HIGH (Source of Data)... 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. .