order « Eclipse « JPA Q&A

1. How do I guarantee the order of items in a collection    stackoverflow.com

I have a list of objects and each and every object in the list have a position which may not change unless explicitly changed, in other words, the objects are in ...

2. Controlling the column order when EclipseLink creates tables    stackoverflow.com

I'm using EclipseLink with the "eclipselink.ddl-generation" property set to "create-tables". The order of the columns in the created tables seems random. I want the columns in a particular order ...

3. Please help converting this SQL to JPQL, problem with subquery (EclipseLink v2)    stackoverflow.com

I have days trying to solve this. I need to have an ORDER BY and a LIMIT in a subquery, this is the native SQL:

SELECT
    ope.idOperacion AS OperationID,
  ...

4. How to order by count() in JPA    stackoverflow.com

I am using This JPA-Query:

SELECT DISTINCT e.label FROM Entity e 
GROUP BY e.label 
ORDER BY COUNT(e.label) DESC