Owb_mapedit.gif shows the Mapping Editor in OracleBI Warehouse Builder. This screen capture shows three icons on the Mapping Editor canvas: ORDERS table icon, WH_ORDERS table icon, and F_DECODE transformation icon. ORDERS points directly to WH_ORDERS. ORDERS also points to F_DECODE, which points to WH_ORDERS. This mapping indicates that ORDERS is the source table, WH_ORDERS is the target table, and the data is transformed by F_DECODE.