Select data from sap tables CLBW
Display SAP table details
CLBW - Object types (classes) for info object (BW)
CLBW_DATASOURCE - PERFORM GET_REF_ISOURCE USING G_REF_ISOURCE.
CLBW_HIENODE_MATNR - hierarchy node - class hierarchies on materials
CLBW_SOURCES - Data Sources for Classification Data
Return Table index