[英]How do I write this JPQL query with subquery?
我正在嘗試翻譯該SQL語句
SELECT
operationalobjective.idoperationalobjective,
pno_oo.name
FROM
public.operationalobjective,
public.policynamedobject pno_oo
WHERE
pno_oo.idpolicynamedobject = operationalobjective.idoperationalobjective AND
operationalobjective.idoperationalobjective NOT IN
(
SELECT
operationalobjective.idoperationalobjective
FROM
public.operationalobjective,
public.goal,
public.policy,
public.policynamedobject pno_oo,
public.policynamedobject pno_p
WHERE
goal.idpolicy = policy.idpolicy AND
goal.idoperationalobjective = operationalobjective.idoperationalobjective AND
pno_oo.idpolicynamedobject = operationalobjective.idoperationalobjective AND
pno_p.idpolicynamedobject = policy.idpolicy AND
policy.idpolicy = <number>
);
考慮到Policy和OperationalObjective都擴展了PolicyNamedObject,我試圖將其引入JPQL:
SELECT oo FROM OperationalObjective oo
WHERE oo.idoperationalobjective NOT IN
(
SELECT oo.idoperationalobjective
FROM OperationalObjective oo, Goal g, Policy p
WHERE g.policy = :policy AND g.operationalobjective = oo AND p = :policy
)
但是,當我通過JPA執行該查詢時,它會引發一個異常:
ERROR: missing FROM-clause entry for table <<t5>>
SELECT t7.idpolicynamedobject, t7.type, t7.description, t7.name, t0.idoperationalobjective, t0.idobjectivescategory
FROM public.OperationalObjective t0 INNER JOIN public.PolicyNamedObject t7 ON t0.idoperationalobjective = t7.idpolicynamedobject
WHERE (NOT (t0.idoperationalobjective IN
(
SELECT t5.idoperationalobjective
FROM public.OperationalObjective t1 CROSS JOIN public.Goal t2 CROSS JOIN public.policy t3
INNER JOIN public.PolicyNamedObject t4 ON t3.idpolicy = t4.idpolicynamedobject
INNER JOIN public.PolicyNamedObject t6 ON t5.idoperationalobjective = t6.idpolicynamedobject, public.OperationalObjective t5
WHERE (t2.idpolicy = ? AND t2.idoperationalobjective = t5.idoperationalobjective
AND t3.idpolicy = ?) AND t6.type = ?))) AND t7.type = ?} [code=0, state=42P01]
我已經使用PgAdmin執行了SQL語句,它檢索了我想要的內容,但是我不知道我在做錯什么,將其轉換為JPQL ...知道嗎?
先感謝您 :)
我懷疑您將需要重構JPQL語句以使用子查詢“ EXISTS”,因為IN語句不支持子選擇。 希望這將為您指明正確的方向。
SELECT oo FROM OperationalObjective oo
WHERE NOT EXISTS
(
SELECT oosub
FROM OperationalObjective oosub
JOIN oosub.goal g
JOIN g.policy p
WHERE <<where conditions>>
)
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