HQL：内部连接

Question

我想要做内部在我的HQL查询加入，但我得到了这个错误：

产生的原因：org.hibernate.hql.internal.ast.QuerySyntaxException：意外的标记： （...

SELECT new myDto(
       col1, col2 
      FROM table1,table2 
      INNER JOIN (
       SELECT foo, bar, ... max(nb) as numberBar 
       FROM table1 
       GROUP BY foo, bar ... 
      ) myAlias 

      ON table1.foo = myAlias.foo 
      AND table1.bar = myAlias.bar 
      ... 

查询中的SQLDeveloper工作

Answer 1

只是检查您已发布查询，我觉得你有后关闭的new myDto括号，因为在查询您已发布未闭：

SELECT new myDto(
       col1, col2) 
      FROM table1,table2 
      INNER JOIN (
       SELECT foo, bar, ... max(nb) as numberBar 
       FROM table1 
       GROUP BY foo, bar ... 
      ) myAlias 

      ON table1.foo = myAlias.foo 
      AND table1.bar = myAlias.bar 
      ... 

Answer 2

休眠似乎并不支持inner join与随后select Inner join with select on HQL 我管理，使其工作：

SELECT new myDto(
    //usual colums selection here 
    from table1, table2 
where ... 
AND .... 

// solution here without inner join 
AND ( table1.foo, table1.bar, nb) 
IN (select foo, bar, max(nb) as number 
    from table1  
    group by foo, bar)