Toplink generate the SQL statement correctly but it does not return any row

Question

Hi
I faced an strange problem when using Toplink as JPA provider. Following snippet shows how I create and execute a query using Toplink JPA:
q = em.createQuery("SELECT B FROM Branch B WHERE B.street LIKE :street");
q.setParameter("street", "'%a%'");
   List<Branch> l = q.getResultList();
  System.out.println("List Size: " + l.size());The SQL statement resulted by this query is as follow (according to the generated log file)
SELECT ID, STREET FROM BRANCH WHERE (STREET LIKE CAST (? AS VARCHAR(32672) ))
  bind => [%a%]Problem is that List size is always 0, independent of what I provide as parameter. I tried and executed the generated SQL statement in the SQL manager and I got some tens of record as the result. The SQL statement i tested in the SQL manager is like:
SELECT ID, STREET FROM BRANCH WHERE (STREET LIKE CAST ('%a%' AS VARCHAR(32672) ))Can someone please let me know what I am missing and how I can fix this problem?
Thanks.

Answer 1

Hi,
Thank you for reply.
All data are stored in lower case so, the case sensitivity is not a problem. I am wondering how the generated query works fine when I execute it in the sql manager but it return no result when it is executed by the JPA.
Thanks for looking into my problem.