Top "Entity-relationship" questions

Should @JoinTable be specified in both sides of a @ManyToMany relationship?

I've an entity Course and an entity User. There's a many-to-many relation ship between course and user, since a course …

java hibernate jpa many-to-many entity-relationship

Mapping a ternary relationship to the relational model (Employes, Customer, Project)

I would like to convert this segment of an ER-Diagram to a relational model. We have a ternary relationship and …

database database-design relational-database entity-relationship cardinality

Entity Framework Code First Class with parent and children of same type as it's own class

I have a class of Content which should be able to have a parentId for inheritance but also I want …

sql entity-framework entity-framework-4.1 ef-code-first entity-relationship

Doctrine2 SQLSTATE[42000]: Syntax error or access violation: 1064

User.php; <?php namespace Acme\DemoBundle\Entity; use Doctrine\ORM\Mapping as ORM; /** * @ORM\Entity * @ORM\Table(name="like") * @…

mysql sql symfony doctrine-orm entity-relationship

Laravel: how can I loop through the fields and relations of an ORM

In Laravel if I create an ORM for a table, lets say pages Is there a way to list/loop …

orm field laravel entity-relationship laravel-3

Create Entity-Relationship Diagram from MySQL Database

I am trying to create an Entity-Relationship Diagram by reverse engineering a MySQL database using a .SQL file. The process …

mysql reverse-engineering entity-relationship adodb entity-relationship-model