ef codeFirst modify table structure such as adding a field EF code first need to rebuild the library cause data loss problems. - Code World

ef codeFirst modify table structure such as adding a field EF code first need to rebuild the library cause data loss problems.

Others 2019-09-15 04:10:31 views: null

We need to run the following command in the library in the package manager:

1. Enable migration: the Enable--ContextTypeName MvcMovie.Models.MovieDbContext, Migrations, 
2. establish initial state: the Add-Migration the Initial 
3. Migration automatically generated based on the ratio of the difference: the Add-Migration AddRatingMig 
4. Migrate to the database: update- database

Migrations-order execution the Enable 
 the Add-Migration 1 (1 is just written) 

 Update-Database

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Origin www.cnblogs.com/llsg/p/11520712.html

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