Entity Framework: Code First vs Database First

Code First:

In Code First approach, the database is created based on the classes and relationships defined in code. The database schema is generated automatically based on the entity classes and configurations specified in the code.

Database First:

Database First approach involves creating entity classes and the context class based on an existing database schema. This approach generates entity classes, configurations, and context class from the database tables and relationships.

When to use Code First:

• When starting a new project from scratch and no existing database schema is available.
• When you have full control over the database design and want to define it through code.

When to use Database First:

• When the database already exists and you need to work with an existing schema.
• When dealing with legacy databases or databases managed by a separate team.

Choosing between Code First and Database First depends on the project requirements, existing infrastructure, and the level of control needed over the database schema. Both approaches have their advantages and are suitable for different scenarios in Entity Framework development.