BPIB0 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 "Business partner: Screen-Only Fields, Int. Control" 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_BPIB0 TYPE BPIB0.
The BPIB0 table consists of various fields, each holding specific information or linking keys about Business partner: Screen-Only Fields, Int. Control data available in SAP. These include BP_ENTRACT (Number of current entry), BP_ENTRSUM (Number of entries), BP_PAGEACT (Current Page Number), BP_PAGESUM (Number of Pages)... 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. .