I\'ve got a table that stores inventory for a store that looks like this InventoryIdint ParentIdint ShortDescint
We have a project th开发者_开发百科at has two one to many relationships. We encounter a core data fault when we try to delete the parent object. This ONLY happens if the child relationships are empty.
I use Entity Framework 4 and MVC 2. I Have an Address Entity, Contact, Company. There are a relation between Contact and Address and Company and Address.. A Contact can Have an Address and a Company
I was looking at ER diagrams today. If we consider two entities, Item and Member in the context of a rental shop, the member can either checkout an item or renew the item. So for this, I came up with
I have two tables: Companies and Employees. I also have a relation table Employs which contains the foreign keys company_id, employee_id as a composite primary key. Note: employees can work at multip
I have a code-first, POCO project in which I am trying to adjust an existing database so that it syncs up with what EF is expecting, given my existing model.
Hi, Although I have a lot of experience in database development, I\'m having a hard time conceptualizing linking relationships in Core Data. As I understand it, the many relationship is an NSSet at
I wanted to know if there is a way to get in a One2Many relationship a field of the One side that is an aggregate of the Many side.
I\'m working on a database schema that\'s driving me a little mad at the moment because I seem to be repeating the same tables to reproduce behaviour for different types.
I have a database, and I have entity POCO\'s, and all I want to use EF for is to map between the two and keep track of changes for loading, saving, etc.
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