I have the following: target_content_type = models.ForeignKey(ContentType, related_name='target_content_type') target_object_id = models.PositiveIntegerField() target = generic.GenericForeignKey('...

I use Generic Foreign keys to relate different profiles with my Users model which is inherited from auth.User. I'm not able to do dumpdata though with the --natural option passed. It says, Error:...

While reading through the Hibernate documentation, I keep seeing references to the concept of a natural identifier. Does this just mean the id an entity has due to the nature of the data it holds...

Is there any advantage to find an object using the Hibernate's @NaturalId? I'm concerned about the fact that Hibernate performs two queries to get an object using @NaturalId. The first query just ...

Which one is the best practice and Why? a) Type Table, Surrogate/Artificial Key Foreign key is from user.type to type.id: b) Type Table, Natural Key Foreign key is from user.type to type.typeN...

While there is plenty of information around on how to model, in JPA (2), a one-to-one relationship OR an entity having a natural key, I haven't been able to find a clear / simple answer to how to m...

As I understand, the model manager's get_by_natural_key is used in deserialization and the natural_key is used in serialization. Is this true ? If not what are the differences ? And also, do we n...

The original question stems from this question: Why is this JPA 2.0 mapping giving me an error in Eclipse/JBoss Tools? As you can see this constellation also freaks out the Eclipse Dali JPA valid...

I'm studying a way to serialize part of the data in database A and deserialize it in database B (a sort of save/restore between different installations) and I've had a look to Django natural keys t...

If I have a table of a hundred users normally I would just set up an auto-increment userID column as the primary key. But if suddenly we have a million users or 5 million users then that becomes re...