MULTIRANGE 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 "Structure for Cross-field RANGES Tables" 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_MULTIRANGE TYPE MULTIRANGE.
The MULTIRANGE table consists of various fields, each holding specific information or linking keys about Structure for Cross-field RANGES Tables data available in SAP. These include SIGN (ABAP: ID: I/E (include/exclude values)), OPTION (Relational Operator), LOW (Value of any chosen local field), HIGH (Value of any chosen local 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. .