查询HQL查询语法错误

Question

Hql查询：

Select ecd.consumption from com.dventus.wonchi.jaxb.messages.Wonchi as w 
join w.systemBound as consumption 
join consumption.fixedNetwork as ecd 
where w.meterId = 'DVEHighLowUsageCheck' and ecd.time in (select min(ecd.time))

例外：

java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: unexpected end of subtree [Select ecd.consumption from com.dventus.wonchi.jaxb.messages.Wonchi as w join w.systemBound as consumption join consumption.fixedNetwork as ecd where w.meterId = 'DVEHighLowUsageCheck' and ecd.time in (select min(ecd.time))]

Answer 1

正如@getjackx所指出的，语法不正确。

您需要为子选择FROM添加条款select min(ecd.time)，例如：

select min(ecd2.time) FROM FixedNetwork ec2