WSD_PURCHASING_GEN_STY 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 "Purchasing General 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_WSD_PURCHASING_GEN_STY TYPE WSD_PURCHASING_GEN_STY.
The WSD_PURCHASING_GEN_STY table consists of various fields, each holding specific information or linking keys about Purchasing General Data data available in SAP. These include MANDT (Client), INFNR (Number of Purchasing Info Record), MATNR (Material Number), MATKL (Material Group)... 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. .