關聯式資料庫模型化Relational Database Modeling

本節中的組態一般適用於關聯式資料庫。The configuration in this section is applicable to relational databases in general. 當您因共用 Microsoft.EntityFrameworkCore.Relational 套件而安裝關聯式資料庫提供者時,這裡顯示的擴充方法會變成可用。The extension methods shown here will become available when you install a relational database provider (due to the shared Microsoft.EntityFrameworkCore.Relational package).