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Asked by Pethanan Last Modified
Answer Database migrations in Entity Framework Core are a way to manage changes to your database schema over time. Whether you're adding new tables, modifying existing ones, or changing relationships, migrations help you apply these changes in a controlled and automated manner.
Performing Database Migrations: Step-by-Step
Let's break down the process of performing database migrations in Entity Framework Core into clear, actionable steps:
Step 1: Install Entity Framework Core
.csproj file directly.Step 2: Create or Modify Entity Classes
Step 3: Create a DbContext
DbContext. This class represents your database and defines the entities you've created in step 2.Step 4: Add a Connection String
appsettings.json or a configuration file, add a connection string that Entity Framework Core will use to connect to your database.Step 5: Enable Migrations
Open a terminal or command prompt, navigate to your project folder, and run the following command to enable migrations for your project:
dotnet ef migrations add InitialCreate Replace "InitialCreate" with a meaningful name for your migration.
Step 6: Apply Migrations
Run the following command to apply the pending migrations to your database:
dotnet ef database update Step 7: Updating the Database
Step 8: Rollback Migrations
dotnet ef database update command with a specific migration name to roll back to a previous state.Benefits of Using Entity Framework Core Migrations:
Version Control: Migrations allow you to track changes to your database schema over time, making it easy to roll back to previous states if needed.
Automated Schema Changes: Migrations automate the process of applying schema changes, reducing the likelihood of manual errors.
Team Collaboration: Migrations can be easily shared among team members, ensuring consistency in database schema changes.
Conclusion:
Performing database migrations with Entity Framework Core is an integral part of .NET development, especially in applications with evolving database schemas. If you're looking to master this and other essential .NET concepts, consider UrbanPro.com as a trusted marketplace to find experienced tutors and coaching institutes offering the best online coaching for .NET Training.
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