SELECT T.CLASS_NAME FROM MIL_CRAFTWORK_SET T WHERE T.PLINE_CODE = ? AND T.STATION_CODE = ? GROUP BY T.CLASS_NAME SELECT S.COLUMN_KEY, T.FACTOR_VAL FROM MIL_CRAFTWORK_SET T, MIL_CRAFTWORK_BASE S WHERE T.FACTOR_ID = S.FACTOR_ID AND T.CLASS_NAME = ?