value « Fetch « JPA Q&A





1. Hibernate HQL fetch only table value?    stackoverflow.com

Is possible fetch only table value without fetch all the invese collection pesent ni others correlate tables? example:

-------------------
User
-------------------
id int primary key
name varchar 
-------------------

-------------------
Client
-------------------
id int primary key
name varchar
id_user int foreign-key ->User.id
-------------------
In HQL query ...

2. Getting old values when fetching data in Hibernate    coderanch.com

Hi, I am using Hibernate 3.0, Tomcat and Spring. The following is my issue, Whenever I try to persist and query for the objects using hibernate it works fine. However sometimes it fetches the values which is different to the database (ie, old values). Ex: I have an object with the status "SETUP", later I changed the status of this object ...

5. How to retrieve value from same table    forum.hibernate.org

Hi Experts, Consider database table is "e_table". It contains the fields are "e_id" and "e_name". my question is: How to retrieve and display the values when the same table is act as another table to retrieve the values like the following query. "SELECT e1.*,e2.* FROM e_table e1,e_table e2;". When i using the above query i got the answer in sql. When ...

6. Retrieve collection of values    forum.hibernate.org

7. Problems while fetching NULL values when using HQL    forum.hibernate.org

hi I have a table named Category which has recursive bidirectional relationship . It has following fields ID ---> Primary Key NAME PARENT_ID --> Foreign key referred to ID of this table Sequence I have done neccsary changes in the mapping file for this . But to meet my business needs, i need to fetch all the parent_id which are null ...

8. Fetching referenced table with dynamic static/values?    forum.hibernate.org

I don't think I fully understand the question, but is it possible that you want to use the formula attribute instead of the column attribute? This will make the column read-only, though, so you may want two mappings for the same column, one using formula and one using column. Alternatively, you could keep the existing mapping and add a new member ...

9. Fetching values from a query which join two tables    forum.hibernate.org

Hi, I have written q query in hibernate for joining two tables and it return a list. By retrieving the values from the list, i am unable to know the instance object type. I have written the code like this.. list = session.find("select folder.foldername,folderfiles.filename from uploader.registration.Folder folder,uploader.registration.Folderfiles folderfiles where folder.folderid=folderfiles.folderid and folder.userid='"+username+"'"); System.out.println("list size="+list.size());//it is showing the size correctly. for(Iterator itr ...





10. setFetchSize(int value)    forum.hibernate.org

query.setFetchSize(int value) is not working as expected. even though i specify the fetch size, in the above method the query is listing all the results that match the criteria irrespective of fetch size. i din't get exactly how that method is working. can any one of u help me in finding the solution thnx

11. Fetching any random values meeting certain Criteria    forum.hibernate.org

Is it possible to fetch random values from Hibernate using the Criteria API? EG: Session session = sessionFactory.openSession(); Criteria criteria = session.createCriteria(Something.class); List somethingList = (List)criteria.listRandom(); I want to get a number of values from the database not caring which order they're in, and I'd like to have them be random. Apart from just fetching all of the values from the ...