如何在JPARepository中編寫內部聯接查詢

Question

我有以下查詢，該查詢可以在MySQL中完美運行，但是在存儲庫中編寫時卻給出了錯誤。如何在JPARepository編寫內部JPARepository查詢？

@Query("Select address from Address a inner join Order o ON a.id=o.pickup_address_id where o.customer_id=: customerId  AND a.address LIKE 'C%'")
     Set<Address> findPickupAddress(@Param("customerId") Long customerId); 

錯誤：意外令牌：第1行第66列附近的訂單

Answer 1

order是保留字。 如果您不能重命名該表，則應按以下方式使用它：

@Query("Select address from Address a inner join `Order` o ON ...")

Answer 2

JPQL中沒有ON ，因此查詢更新為：

 @Query("Select a from Address a , Order o where a.id=o.pickupAddress AND o.customer.id=:customerId  AND a.address LIKE 'C%'")
     Address findPickupAddress(@Param("customerId") Long customerId);
}