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Object Relational Mapping
Correlated subqueries in HQL Select Clause
Amandeep Singh Khurpal
Joined: Feb 20, 2012
Feb 20, 2012 00:36:08
I am Trying use correlated Queries in HQL (in select clause) for the first time and i am having the problem, Please help
My HQL Query is of type
SELECT CMP.id ,CMP.Name, CMP.startDate, CMP.endDate, CMPTTL.impr, CMPTTL.cnImpr, (CMPTU.id.login FROM Z CMPTU WHERE CMPTU.id.cId=CMP.id AND CMPTU.id.login = 'email@example.com') FROM X CMP, Y CMPTTL WHERE CMP.Status = 'L' AND CMP.id = CMPTTL.Id (+)
As per the Hibernate Documentation "HQL subqueries can occur only in the select or where clauses.Even correlated subqueries (subqueries that refer to an alias in the outer query) are allowed. "
But when i execute my HQl I have this Error
"org.hibernate.QueryException: aggregate function expected before ( in SELECT"
I have seen the selectParser of hibernate and it expects a Aggregate function whenever "(" is encountered
Thanks in Advance
It is sorta covered in the
JavaRanch Style Guide
subject: Correlated subqueries in HQL Select Clause
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