Question

我与协会一起开发一个网站。 NET Core 8 Web AP, 服务器,利用身份框架。该数据库载有各种表格,如AspNetUsers、AspNetRoles、AspNetUserRoles、Brands等。页: 1 我已经以真实数据为数据库配备了人员,我更倾向于不上表。当我需要修改数据库时,我通常使用指挥线。然而,每当我更新表格时,AspNetUserRoles的表格就已经清理完毕。我如何保存用户名册上的数据?

这里是我尝试的指挥线。

dotnet ef migrations add updateUserTable

dotnet ef database update

There is userRoles table after I execute these command lines but the userRoles table is empty. I m using VSCode for developing tool.

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Answer 1

You must create a new migration to incrementally update the database schema whenever you make a change to the model. Run the command below:

dotnet ef migrations add AddNewMig - This command creates a new migration called AddNewMig which EF should recognise is an update to the exsiting tables (and therefore the migration should only be and update)

dotnet ef database Update Add NewMig - 届时,将处理Add NewMig移民案。

Reference: Migrations Overview

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