我如何在JPQL内部加入子查询 [英] How can i inner join a subquery in JPQL

问题描述

对于MySQL查询，我需要一个JPQL:

I need a JPQL for the MySQL query:

SELECT * 
FROM table1 t1 
INNER JOIN table2 t2 
  ON t1.id = t2.table1.id 
INNER JOIN (SELECT * FROM table1 t3 
            INNER JOIN table2 t4 ON t3.id = t4.table1.id 
            WHERE t3.name = 'xxx') subTable 
  ON t1.number = subTable.number 
WHERE t1.number = '5' 
  AND id = '3'

推荐答案

您的查询似乎很病理，也许说出您要查询的结果是什么，并包括对象模型.

Your query seems quite pathological, perhaps say what result you are trying to query, and include your object model.

通常，JPQL在from子句中不支持子选择，因此您的查询不能直接转换为JPQL.

In general, JPQL does not support sub-selects in the from clause, so your query is not directly convertable to JPQL.

您总是可以将其作为JPA本机SQL查询执行，因为您似乎比JPQL熟悉SQL.

You can always just execute it as a JPA native SQL query, since you seem to be comfortable with SQL than JPQL.

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