When I retrieve an entity from the one side of a one-to many relationship, I create a mutable array from the set that is the collection of entities from the relationship. I manipulate, edit or otherwi
In SQL, I have a 1:1 relationship defined between 2 tables which are linked by 2 mapping tables, four in total. I have no influence on the database schema.
I have set of entities with some level of inheritance. abstract class A { ... } class B: A //Non abstract B
I have three tables structure like following AppUserUserApp ********************* AppUserIdUserIdAppId UserId
I have an entity with a relationship with itself. I have declared a first to-many relationship named children. And a one to one named parent.
In a vector graphics manipulation program, I have a \"Group\" entity which specifies groups of graphics and other groups. A Group can belong to only one other Group, but can contain many other Groups.
Below is a diagram of a database in which I am trying to determine the appropriate design for. Here are a few notes.
I have th开发者_如何学Ce following tables in my edmx : Errors Id, Description, solved, officeId, siteId
I have a OneToMany relationship defined like this: @Entity Parent extends BaseEntity { @OneToMany(mappedBy = \"parent\", fetch = FetchType.LAZY, cascade = { CascadeType.PERSIST, CascadeType.REFRESH,
I\'m trying to model the relationship of dvd sales and dvd rentals to a customer. Although I dont think my transction table is correct. If anyone can let me know if I\'m goin in the right direction wi