PMCS_BW_ORDERS 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 "Ranges for order number" 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_PMCS_BW_ORDERS TYPE PMCS_BW_ORDERS.
The PMCS_BW_ORDERS table consists of various fields, each holding specific information or linking keys about Ranges for order number data available in SAP. These include OPTION (Version Number Component), LOW (Order Number), HIGH (Order Number)... 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. .