join « Column « JPA Q&A





1. One more column into join table using hibernate many-to-many    stackoverflow.com

How i can map structure like this db model into

class A{
    Map<SomeEnum, B> foo;
}
where key in foo is representation of role in a_ has _b ? Thanks!

2. hibernate optional join - need to return join column value either way    stackoverflow.com

as a follow on from hibernate optional join Many existing queries in the system rely on there being a mapped relationship between EntityOne and EntityTwo and changing this is not an ...

3. Joining tables with mis-named columns    forum.hibernate.org

Hibernate version: 2.1.6 Hi there, I'm struggling with joining two tables together in a 1:1 relationship. Table 1: Member Column members_Id shares a close and growing relationship with: Table 2: Policy Column: member_id So the join is on pol.member_id = member.members_id How do I achieve this? If it's a straightforward member_id column in both tables it's easy. All iterations I've tried ...

4. Referencing a joined table column    forum.hibernate.org

5. Specifying join on a different column for set element    forum.hibernate.org

Hi I am trying to use within set. I have a User table with userId as the primary key, this table is in one to many relation with GroupLink table. The joining column is groupId in both the tables. ( one-to-many is not mentioned in the mapping files ) As I am only interested in one of the columns (ancestorGroupId ...

6. Sets where the linking column is in a joined table    forum.hibernate.org

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7. Hibernate 3.1.1 prefixing unnecessary join columns    forum.hibernate.org

Hibernate version: 3.1.1 Mapping documents: Hibernate Annotations beta 8 Code between sessionFactory.openSession() and session.close(): Using Spring Name and version of the database you are using: Oracle 10g (10.1.2) The generated SQL (show_sql=true): Hello there! I've really tried everthing here, I've posted at the EJB3 forum, and got no reply, please help me here! I have entities that are mapped to views ...

9. Join on indeterminate column value    forum.hibernate.org





10. how to access columns in a join table    forum.hibernate.org

hello let's say I have two tables with a many to many relationship. I use a join table and the corresponding xml mapping file to do the mapping. everything works fine. but I also have an extra column in the join table which I have to access. I could create a third mapping for the join table and use two one ...

11. Question on joins with an ummapped column    forum.hibernate.org

I am a novice at using Hibernate and have a question I hope is appropriate to ask in this forum. I have a entity called person which contains a collection called : Code: public class Person { . . ...

12. Intermediate table and same column Join    forum.hibernate.org

Problem I have 3 tables. Userversion is a intermediate table with this: - id - idinstancia - id version - etc. Instancia - id - etc and Solinstancia - id - etc the id from Instancia and Solinstancia is the foreign key in userversion (the idinstancia field). So I need make a join between this 3 tables. Somebody know how make ...

13. How to substitute values on specific columns (joins)    forum.hibernate.org

Hey guys I am dealing with legacy data and legacy code, thus I really can't change stuff outside of new development. Is there any way to specific substitute values for join columns? Lets say I don't have a look up table but I have hard coded constants instead. Like type 1,2 and 3 (which are getters that return a constant) I ...