WSD_PARAMS_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 "Additional Parameters for Enhanced Material Search" 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_PARAMS_STY TYPE WSD_PARAMS_STY.
The WSD_PARAMS_STY table consists of various fields, each holding specific information or linking keys about Additional Parameters for Enhanced Material Search data available in SAP. These include EKGRP (Purchasing Group), LIFNR (Account Number of Vendor or Creditor)... 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. .