BBP_PCARD 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 PCard data in user creation" 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_BBP_PCARD TYPE BBP_PCARD.
The BBP_PCARD table consists of various fields, each holding specific information or linking keys about Structure for PCard data in user creation data available in SAP. These include PCNUM (Procurement card number), PCDAT_FROM (Procurement card valid from date), PCDAT_TO (Procurement card expiration date)... 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. .