BAPI_ITOB_SEL_SORTFIELD 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 "BAPI Communication Structure: Range for Sort Field" 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_BAPI_ITOB_SEL_SORTFIELD TYPE BAPI_ITOB_SEL_SORTFIELD.
The BAPI_ITOB_SEL_SORTFIELD table consists of various fields, each holding specific information or linking keys about BAPI Communication Structure: Range for Sort Field data available in SAP. These include OPTION (Selection operator OPTION for range tables), LOW (Sort field), HIGH (Sort field)... 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. .