Question

所以，这是我在SQL中的原始查询：

SELECT      o.offering_number,
        o.english_description,
        o.french_description,
        fop.price_amount,
        fop2.price_amount,
        fop.price_type_code,
        fop.offering_id,
        fop2.offering_id
            from facility_offering_price fop
            join offering o on fop.offering_id = o.offering_id
            inner join
                (select
                    fop1.offering_id,
                    fop1.price_amount
                            from facility_offering_price fop1
                            WHERE fop1.price_type_code = 5
                            AND fop1.price_status_code = 1
                ) fop2 on fop.offering_id = fop2.offering_id
                WHERE fop.price_start_date = '15-10-28'
                AND fop.price_status_code IN (1,2)
                /*AND (price_status_code IS NULL)*/
                AND fop.price_type_code = 5
                /*AND (o.offering_number IS NULL)*/
                    ORDER BY o.offering_number ASC, fop.price_sequence_number ASC;

以上是HQL中的查询：

    @Query("SELECT new com.frontier.dto.productprice.PendingPriceProduct("
        + " fop.facilityPhysicalOffering.offeringNumber,"
        + " fop.facilityPhysicalOffering.offering.description.englishDescription,"
        + " fop.facilityPhysicalOffering.offering.description.frenchDescription,"
        + " fop.priceAmount,"
        + " fop2.priceAmount,"
        + " fop.priceStatusCode"
        + ")"
        + " from FacilityOfferingPrice fop"
        + " INNER JOIN (SELECT fop1.offeringId, fop1.priceAmount FROM FacilityOfferingPrice fop1 WHERE "
        + " fop1.id.priceTypeCode = com.frontier.domain.type.PriceType.REG_RETAIL_PRICE"
        + " AND fop1.priceStatusCode = com.frontier.domain.type.OfferingPriceSts.CURRENT" +
        " ) fop2 on fop.offeringId = fop2.offeringId"
        + " WHERE fop.priceStartDate = :priceStartDate"
        + " AND fop.priceStatusCode IN (:priceStatusCodes)"
        + " AND (:priceStatusCode IS NULL OR fop.priceStatusCode = :priceStatusCode)"
        + " AND fop.id.priceTypeCode = com.frontier.domain.type.PriceType.REG_RETAIL_PRICE"
        + " AND (:fromOfferingNumber IS NULL OR fop.facilityPhysicalOffering.offeringNumber >=:fromOfferingNumber)"
        + " ORDER BY fop.facilityPhysicalOffering.offeringNumber ASC, fop.id.priceSequenceNumber ASC")
List<PendingPriceProduct> findPendingPriceProducts(
        @Param("priceStartDate") LocalDate priceStartDate,
        @Param("priceStatusCodes") List<OfferingPriceSts> priceStatusCodes,
        @Param("priceStatusCode") OfferingPriceSts priceStatusCode,
        @Param("fromOfferingNumber") Long fromOfferingNumber,
        Pageable pageable);

错误消息：意外令牌:(靠近第1行，第372行。所以，连接语法有问题。在用此连接替换子查询之前，这一切都很好。

感谢您的帮助。

更新：

新查询：

    @Query("SELECT "
        + " new com.frontier.dto.productprice.PendingPriceProduct("
        + " fop.facilityPhysicalOffering.offeringNumber,"
        + " fop.facilityPhysicalOffering.offering.description.englishDescription,"
        + " fop.facilityPhysicalOffering.offering.description.frenchDescription,"
        + " fop.priceAmount,"
        + " fop1.priceAmount,"
        + " fop.priceStatusCode"
        + ")"
        + " from FacilityOfferingPrice fop"
        + " INNER JOIN FacilityOfferingPrice fop1 on fop.offeringId = fop1.offeringId"
        + " WHERE fop.priceStartDate = :priceStartDate"
        + " AND fop.priceStatusCode IN (:priceStatusCodes)"
        + " AND (:priceStatusCode IS NULL OR fop.priceStatusCode = :priceStatusCode)"
        + " AND fop.id.priceTypeCode = com.frontier.domain.type.PriceType.REG_RETAIL_PRICE"
        + " AND (:fromOfferingNumber IS NULL OR fop.facilityPhysicalOffering.offeringNumber >=:fromOfferingNumber)"
        + " ORDER BY fop.facilityPhysicalOffering.offeringNumber ASC, fop.id.priceSequenceNumber ASC")
List<PendingPriceProduct> findPendingPriceProducts(
        @Param("priceStartDate") LocalDate priceStartDate,
        @Param("priceStatusCodes") List<OfferingPriceSts> priceStatusCodes,
        @Param("priceStatusCode") OfferingPriceSts priceStatusCode,
        @Param("fromOfferingNumber") Long fromOfferingNumber,
        Pageable pageable);

新错误：加入的路径！，`InvalidPathException：路径无效：'fop1.priceAmount'

Answer 1

我不确定你是否可以在HQL中编写这样的子查询，顺便说一下，你真的需要一个子查询吗？如果你像那样重写初始查询

SELECT      o.offering_number,
        o.english_description,
        o.french_description,
        fop.price_amount,
        fop1.price_amount,
        fop.price_type_code,
        fop.offering_id,
        fop1.offering_id
            from facility_offering_price fop
            join offering o on fop.offering_id = o.offering_id
            inner join facility_offering_price fop1
              on fop.offering_id = fop1.offering_id
        WHERE fop.price_start_date = '15-10-28'
                AND fop.price_status_code IN (1,2)
                /*AND (price_status_code IS NULL)*/
                AND fop.price_type_code = 5
                /*AND (o.offering_number IS NULL)*/
                AND fop1.price_type_code = 5
                AND fop1.price_status_code = 1
       ORDER BY o.offering_number ASC, fop.price_sequence_number ASC;

对HQL的翻译应该非常简单。

无法将SQL查询重写为HQL查询

1 个答案: