Documentation Home
>
Sun Java System Application Server Platform Edition 9 Release Notes
>
Chapter 3 Known Issues and Limitations
>
Java Persistence API
>
A query selecting a relationship field does not include null in the query result.
> Solution
Sun Java System Application Server Platform Edition 9 Release Notes
Previous
: Accessing a LAZY initialized relationship from client side sometimes causes a NullPointerException.
Next
: A query selecting a JOIN identification variable defined for a single valued relationship field may result in invalid SQL.
Solution
Select a state field from the related instance.
SELECT o.customer.customerId FROM Order o WHERE ...
Previous
: Accessing a LAZY initialized relationship from client side sometimes causes a NullPointerException.
Next
: A query selecting a JOIN identification variable defined for a single valued relationship field may result in invalid SQL.
© 2010, Oracle Corporation and/or its affiliates
