Select data from sap tables IWER
Display SAP table details
IWERRCLASS - IWB: Object error structure
IWERROBJCT - IWB: Object error structure
IWERRORMAP - Mapping of general errors to special
IWERRORMSG - IWB: Message passing structure
IWERRPROPS - IWB: Attribute error structure
IWERRRELAT - IWB: Relations error structure
Return Table index