oracle sql查询结果某字段 行转列，逗号分隔

LISTAGG(BS,',') WITHIN GROUP(ORDER BY ENGINE_NO)

SQL实例：

query.append("SELECT LICENSE_PLATE,SVIN,MAINTENANCE_DATE,DEFAULT_VIN,ENGINE_NO, 
");
                query.append("       case when LISTAGG(BS,',') WITHIN GROUP(ORDER BY ENGINE_NO) = 'DRIVER,OWNER' then 'OWNER' 
");
                query.append("       when LISTAGG(BS,',') WITHIN GROUP(ORDER BY ENGINE_NO) = 'OWNER' then 'OWNER' 
");
                query.append("       when LISTAGG(BS,',') WITHIN GROUP(ORDER BY ENGINE_NO) = 'DRIVER'then 'DRIVER' 
");
                query.append("       END BS  
");
                query.append("FROM (  
");
                query.append("      SELECT DISTINCT * FROM (SELECT MV.LICENSE_PLATE,MV.SVIN, 
");
                query.append("             TO_CHAR(MV.MAINTENANCE_DATE,'yyyy-MM-dd') MAINTENANCE_DATE,MVM.DEFAULT_VIN, 
");
                query.append("             MV.ENGINE_NO,'OWNER' BS 
");//OWNER 车主
                query.append("             FROM CMS.MAIN_VEHICLE_MENBER MVM,MAIN_VEHICLE MV 
");
                query.append("             WHERE MVM.OWNER_ID = MV.OWNER_ID 
");
                query.append("             AND MVM.MOBILE = '"+telephone+"' 
");
                query.append("      UNION 
");
                query.append("      SELECT MV.LICENSE_PLATE,MV.SVIN,TO_CHAR(MV.MAINTENANCE_DATE,'yyyy-MM-dd') MAINTENANCE_DATE, 
");//DRIVER 司机
                query.append("             DV.DEFAULT_VIN,MV.ENGINE_NO, 'DRIVER' BS FROM ( 
");
                query.append("             SELECT MVM.OWNER_ID,MVM.DEFAULT_VIN,MODR.VIN FROM CMS.MAIN_VEHICLE_MENBER MVM,CMS.MAIN_VEHICLE_DRIVER_RELATION MODR 
");
                query.append("             WHERE MVM.OWNER_ID = MODR.DRIVER_ID 
");
                query.append("             AND MVM.MOBILE = '"+telephone+"' 
");
                query.append("      ) DV, MAIN_VEHICLE MV 
");
                query.append("      WHERE DV.VIN = MV.SVIN) 
");
                query.append(" ) GROUP BY LICENSE_PLATE,SVIN,MAINTENANCE_DATE,DEFAULT_VIN,ENGINE_NO 
");