duplicate « Relationship « JPA Q&A

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1. Problem with duplicates using Grails' withCriteria function with a many-to-many relationship    stackoverflow.com

I've got 2 tables, Question and Answer, with a many-to-many relationship (i.e. Questions can have multiple Answers and Answers can be reused by multiple Questions). For normalization, I have a cross-reference ...

2. Relationship one-to-one of 2 ways - duplicate Column    forum.hibernate.org

User ...

3. One to many relationship problem: duplicate collection role    forum.hibernate.org

4. Preventing Duplicates in one-to many relationship    forum.hibernate.org

I have a single 'User' entity that is used with a unique 'one-to-many' relationship with many of my other entites. e.g: Code: ...