Is EJB query language supports UNION

Question

Hi All,
Can anyone suggest me is EJB query language supports UNION type of select queries
if possible can any one suggest me how to convert below Sql query to Ejb ql
Ex:
select * from table1 where id='10'
union all
select * from table1 where id='20'

Answer 1

The UNION clause specifies a combination of the output of two subqueries. The two queries must return the same number of elements and compatible types
1.You cannot use dependent value objects with UNION.
2.UNION ALL combines all results together in a single collection.
3.UNION combines results but eliminates duplicates.
4.If ORDER BY is used together with UNION, the ORDER BY
must refer to selection expression using integer numbers.
Example:
This example returns a collection of all employee objects of type EmpBean and all manager objects of type ManagerBean where ManagerBean is a subtype of EmpBean.
select e from EmpBean e union all select m from DeptBean d, in(d.mgr) mThis example shows a query that is not valid, because EmpBean and DeptBean are not compatible.
select e from EmpBean e union all select d from DeptBean d
Your Example:
Select e from Table1Bean e where e.id=10
union all
Select e from Table1Bean e where e.id=10