SIMAPARWHV_DATA_DI 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 "IO: DI: Valid Variable Withholding Tax Supplements" 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_SIMAPARWHV_DATA_DI TYPE SIMAPARWHV_DATA_DI.
The SIMAPARWHV_DATA_DI table consists of various fields, each holding specific information or linking keys about IO: DI: Valid Variable Withholding Tax Supplements data available in SAP. These include WHV_QSSEW (Withholding Tax Supplement)... 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. .