BPDCOB1 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 "BP Structure: CoCd Control Data" 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_BPDCOB1 TYPE BPDCOB1.
The BPDCOB1 table consists of various fields, each holding specific information or linking keys about BP Structure: CoCd Control Data data available in SAP. These include PARTNR (Business Partner Number), BUKRS (Company Code), VEND_EX (Indicator: Vendor Exists for Partner)... 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. .