On the model-first approach in the designer, if I create a relationship where the cardinality on one end of the relationship is \'0..1\' and \'1\' on the other, the designer disables the \'Add Foreign
I have a Person table, an Employee table, and a Contractor table. All Employees are people, all Contractors are people and every Pe开发者_如何学编程rson is either an employee or a Contractor. Like so:
I\'ve created a database model with model-first method using Entity Framework 4.0. I then created an sql script using the Generate Database from Model... I\'v开发者_开发百科e also created an SQL Serve
I\'m new to the Entity Framework, and I know this is not suppose to happen, but maybe it is a known issue in the community so I thought I\'d ask.
Im having trouble with the DDL-generation from EDMX using the \"Entity De开发者_开发知识库signer Database Generation Power Pack\" add-on. It generates datetime-columns instead on datetime2 even though
Im using EF4 in VS2010, POCO\'s and the model-first approach. My entity has the following properties: Id:Guid, Name:String, Created:DateTime, Modified:DateTime, Revision:Int32.
Which one should I choose for new project? 开发者_StackOverflow中文版Could I assume, that data-first model provides better DB performance, and model-first provides better OOP handling?I\'m going to gi
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I lik开发者_运维百科e the option of doing model first design with the Entity Framework (4). However, I haven\'t been able to find out how to add an additional index to a table besides the primary key.
Although I have marked my ID column with .Identity(), the generated database schema doesn\'t have IDENTITY set to true, which gives me problems when I\'m adding records. If I manually edit the databas
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