实体框架代码优先迁移保留现有数据 [英] entity framework code first migration keep existing data

问题描述

我使用的是EF 6.1，我在生产环境中的现有数据库中使用代码优先方法.

I am using EF 6.1 and I use code first approach with an existing database with data in a production environment.

是否完全可以迁移模型更改并保留现有客户的数据?

Is it possible at all to migrate model changes and keep the existing customer`s data?

推荐答案

是的，但是，根据具体情况(更改的复杂性)，它可能会很复杂:

Yes, however, it can be complicated depending on specific case (on complexity of changes):

概述: https://docs.microsoft.com/en-us/ef/ef6/modeling/code-first/migrations/existing-database

阅读此内容: https://docs.microsoft.com/en-us/ef/ef6/modeling/code-first/migrations/index

然后执行以下操作: https://docs.microsoft.com/en-us/ef/ef6/modeling/code-first/migrations/teams

更新:根据重定向更新了链接.

Update: updated the links based on redirects.

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