EDIT

            //get representation ids

            List<Integer> repIDs = new ArrayList<>();

            getRepIds(datasource, id, repIDs, "representations_id", "DefinedTermBase_Representation", caseType );

            //remove from MN table

            String sql = " DELETE FROM %s WHERE DefinedTermBase_id = %d";

            sql = String.format(sql, caseType.transformTo("DefinedTermBase_Representation"), id);

            datasource.executeUpdate(sql);

            sql = " DELETE FROM %s WHERE DefinedTermBase_id = %d";

            datasource.executeUpdate(sql);

            //remove representations