在具有現有一對多關系的表之間創建一對一關系 [英]Creating a one-to-one relationship between tables with an existing one-to-many relationship
實體框架6.1代碼優先級聯使用TPH刪除派生類型的一對一關系 [英]Entity Framework 6.1 Code First Cascading Delete with TPH for one-to-one relationship on a derived type