Code First Migrations更新数据库结构的具体步骤 一、打开程序包管理器控制台 当你的实体模型与数据库架构不一致时,引发以下错误: The model backingthe 'SchoolContext' context has changed since the database was created.Consider using Code First Migrations
The model backing the 'StudentDbContext' context has changed since the database was created. Consider using Code First Migrations to update the database(http://go.microsoft.com/fwlink/?LinkId=238269). 解决方法:思路是按照提示 进行EF Code First数据库迁移。 先在出错的数据库上下文中添加如下代码: ...
使用Code First Migrations依据代码更新数据库结构Jenni Konrad
The model backingthe 'SchoolContext' context has changed since the database was created.Consider using Code First Migrations to update the database (http://go.microsoft.com/fwlink/?LinkId=238269) 百度搜索Code First Migrations,都说要执行命令 Update-Database ,在哪执行呢?继续找呀找,的“程序包管...
The model backingthe 'SchoolContext' context has changed since the database was created.Consider using Code First Migrations to update the database (http://Go.microsoft.com/fwlink/?LinkId=238269) 百度搜索Code First Migrations,都说要执行命令 Update-Database ,在哪执行呢?继续找呀找,VS.Net的“程...
Consider using Code First Migrations to update the database ( http://go.microsoft.com/fwlink/?LinkId=238269).As the exception suggests, it’s time to start using Code First Migrations. The first step is to enable migrations for our context....
If you were to run the application again you would get an InvalidOperationException statingThe model backing the 'BlogContext' context has changed since the database was created. Consider using Code First Migrations to update the database (http://go.microsoft.com/fwlink/?LinkId=238269). ...
EF Code First Migrations数据库迁移 1、EF Code First创建数据库 新建控制台应用程序Portal,通过程序包管理器控制台添加EntityFramework。 在程序包管理器控制台中执行以下语句,安装EntityFramework。 PM> Install-Package EntityFramework 1. 安装成功后,界面提示如下图:...
考虑使用Code First Migrations来更新数据库EN我对Entity进行了一些更改，并在packageManager控制台中成功...
If you were to run the application again you would get an InvalidOperationException statingThe model backing the 'BlogContext' context has changed since the database was created. Consider using Code First Migrations to update the database (http://go.microsoft.com/fwlink/?LinkId=238269). ...