AspNetCore.Docs/aspnetcore/includes/RP/sql.md

Work with SQLite in an ASP.NET Core Razor Pages app

By Rick Anderson

The MovieContext object handles the task of connecting to the database and mapping Movie objects to database records. The database context is registered with the Dependency Injection (DI) container in the ConfigureServices method in the Startup.cs file:

[!code-csharp]

For more information on using DbContext with DI, see Using DbContext with DI.

SQLite

The SQLite website states:

SQLite is a self-contained, high-reliability, embedded, full-featured, public-domain, SQL database engine. SQLite is the most used database engine in the world.

There are many third party tools you can download to manage and view a SQLite database. The image below is from DB Browser for SQLite. If you have a favorite SQLite tool, leave a comment on what you like about it.

Seed the database

Create a new class named SeedData in the Models folder. Replace the generated code with the following:

[!code-csharp]

If there are any movies in the DB, the seed initializer returns.

if (context.Movie.Any())
{
    return;   // DB has been seeded.
}

Add the seed initializer

Add the seed initializer to the Main method in the Program.cs file:

[!code-csharp]

Test the app

Delete all the records in the DB (So the seed method will run). Stop and start the app to seed the database.

The app shows the seeded data.