在Entity Framework Core (EF Core)有许多新的功能,最令人期待的功能之一就是批处理语句.那么批处理语句是什么呢?批处理语句意味着它不会为每个插入/更新/删除语句发送单独的请求,它将在数据库的单次请求中批量执行多个语句.在这篇文章中,让我们看看它是如何工作的,并将结果与EF6进行比较. EF Core将一次准备多个语句,然后在单次请求中执行它们,所以能提供了更好的性能和速度.让我们看看它是如何工作的.我们将借助SQL Server Profiler来捕获实际生成和执行的…
问: With Entity Framework Core removing dbData.Database.SqlQuery<SomeModel> I can't find a solution to build a raw SQL Query for my full-text search query that will return the tables data and also the rank. The only method I've seen to build a raw SQ…
Owned Entity Types 首先owned entity type是EF Core 2.0的新特性. 至于什么是owned entity types,可以先把他理解为EF Core官方支持的值对象. 值对象 举一个简单的例子,你可能在开发中经常遇到,订单,地址,地址簿的关系: public class Order { public int Id { get; set; } public string Name { get; set; } public double Price { ge…
Complex types are classes that map to a subset of columns of a table.They don't contains key. They are the Value Objects. For example, you have a entity named Company: public class Company { public int CompanyId { get; set; } public string CompanyNam…