WSD_MANDATORY_CHECK_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 "Used in Mandatory check in creating a material" 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_MANDATORY_CHECK_STY TYPE WSD_MANDATORY_CHECK_STY.
The WSD_MANDATORY_CHECK_STY table consists of various fields, each holding specific information or linking keys about Used in Mandatory check in creating a material data available in SAP. These include FIELD_NAME (Field name in a structure), NODE (Context node name), ERR_NO (Message Number)... 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. .