statement « Update « JPA Q&A





1. Java JPA Inner JOIN with WHERE statement    stackoverflow.com

I want to annotate following structure: I have this query:


SELECT A.*, BES.*, BES_2.*
INNER JOIN BES ON A.a = BES.a AND A.b = BES.b
INNER JOIN BES AS BES_2 ON A.a = BES_2.a AND ...

2. UPDATE statements in HQL    forum.hibernate.org

3. Update fails - Statement is not closed    forum.hibernate.org

Recently we have integrated Hibernate into our product. While moving our value objects to use the persistence layer of Hibernate, We encounter the following problem. The update operation is stuck. The query is created and the values are bound. However the PreparedStatement is not closed (unlike in the insert method scenario) and the flush is not called. See the code snippet ...

4. Update HQL statement    forum.hibernate.org

Hi all, I am using Hibernate 3, weblogic 8.1 my transaction code is Session session = instance.sessionFactory.openSession(); Transaction tx = session.beginTransaction(); String newName="Jhon"; String oldName="Peter"; String hqlUpdate = "update Emp set ename = :newName where ename = :oldName and dept_id=8002"; int updatedEntities = session.createQuery( hqlUpdate ) .setString( "newName", newName ) .setString( "oldName", oldName ) .executeUpdate(); tx.commit(); session.close(); When i am using ...

5. hibernate showing two sql statements for update    forum.hibernate.org

Hi, I am using hibernate 3.1.3. In one hibernate session I am creating and updating the same object. I am executing update using createQuery method. I will always update this object using createQuery method. In hibernate mapping file "show_sql" is set to true. So when I execute my program I am seeing one insert and two update sql statements. I am ...

6. UPDATE statement not supported?    forum.hibernate.org

there are parent/child tables in the persist level of my app. I am trying to use EJBQL to update the child table, link one row to the parent something like this: q = em.createQuery("update child c set c.parent = :PAR where c.id=1"); q.setParameter("PAR", parent); here parent is a exsisting detached parent instance. I got "DML not supported" error. anyone can help ...

7. Update statement will be executet twice    forum.hibernate.org

Hello there, We have a really suspect problem, on write access on the database server we got the exception was found under "stacktrace". the problem is: an updates tatement was executet twice, with the same timestamp. therfore we got the exception. additional informations: - our model has a lot of inheritance in use. collections are defined in superclasses and we use ...

8. Problem executing simply update statement    forum.hibernate.org

I have an update statement in my .java file in the form of a String. String sql = "update ".. and so on. Now I want to use hibernate to execute the update statement. I want to pass a method provided by hibernate a String that contains an update statement. I have read Chapter 16. Native SQL, but it did not ...

9. HQL Update statement issue    forum.hibernate.org

Newbie Joined: Tue May 08, 2007 3:34 pm Posts: 19 This problem has been resolved: I did not include a step to set the session object in the dao. Kind of easy mistake, since no failure was being reported and it displayed one row updated. Misleading.... Thanks anyway. I am having a problem with the below code. The output on 15Jan ...





10. Inoperative UPDATE statements (cannot update)    forum.hibernate.org

Hi, I use Hibernate with HSQLDB in standalone mode to persist my model. I am able to create the database, to add or remove some data but not to update a record. When I modify my model and persist the change using flush, then exit and then reload the model, all my changes made through UPDATE statements seem to have been ...

11. Problem with update statements    forum.hibernate.org

Hi I am trying to update a table in SQL Server database using Hibernate and Struts. I used the statement : Session session = null; SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory(); session = sessionFactory.openSession(); int in = session.createQuery("update Chem c set c.min= :min where c.element =:element").setString("min", form.getMin()).setString("element", form.getElement()).executeUpdate(); session.flush(); if(in!=0) grade="success"; session.close(); I have a JSP page with text fields for element ...