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In this article Xiaobian for you to introduce in detail "how to use Entity Framework Core tools", the content is detailed, the steps are clear, the details are handled properly, I hope this article "how to use Entity Framework Core tools" can help you solve your doubts, following the editor's ideas slowly in-depth, let's learn new knowledge.

Command list Cmdlet Description-Add-Migration Adds a new migration. Drop-Database Drops the database. Get-DbContext Gets information about a DbContext type. Remove-Migration Removes the last migration. Scaffold-DbContext Scaffolds a DbContext and entity types for a database. Script-DbContext Generates a SQL script from the current DbContext. Script-Migration Generates a SQL script from migrations. Update-Database Updates the database to a specified migration.Add-Migration

Description: add a new migration.

The following example creates a migration with the specified name A

Add-Migration A

Drop-Database

Description: delete the database.

The following example deletes the database

Drop-Database-WhatIf

Get-DataContext

Description: get the relevant information about the database context

Remove-Migration

Description: delete last migration (rollback code changes completed for migration)

The following example forces the deletion of the previous migration

Remove-Migration-Force

Scaffold-DbContext

Description: generate code for database and entity types. In order to generate entity types, database tables must have primary keys. DbContextScaffold-DbContext

Script-Migration

Description: generates a SQL script that will apply all changes that migrate from one selected migration to another.

The following example creates a script for the initial creation of a migration using the migration name.

Script-Migration-To InitialCreate

The following example uses the migration ID to create a script for all migrations after the initial creation of the migration.

Script-Migration-From 20180904195021_InitialCreate

Update-Database

Description: update the database to the last migration or the specified migration.

The following example is to restore all migrations

Update-Database-Migration 0

The following example updates the database to the specified migration. The first uses the migration name, and the second uses the migration ID and the specified connection:

Update-Database-Migration InitialCreate

Update-Database-Migration 20180904195021_InitialCreate-Connection your_connection_string

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