Enter . If you build .NET applications (or any app needing a real SQL Server), this tool is a hidden gem you need in your toolbox. What is SqlLocalDb? SqlLocalDb is a lightweight, user-mode instance of SQL Server Express. It was introduced with SQL Server 2012 LocalDB.
Entity Framework Core will automatically create the database when you run migrations. 🔁 Automatically create DB per test run // In xUnit [Fact] public void AddProduct_SavesToDatabase() sqllocaldb
Server=(localdb)\MyEcommerceApp;Database=MyShopDb;Trusted_Connection=true; "ConnectionStrings": "DefaultConnection": "Server=(localdb)\\MyEcommerceApp;Database=MyShopDb;Trusted_Connection=true;" SqlLocalDb is a lightweight, user-mode instance of SQL
But for most .NET apps, you can simply use: 🔁 Automatically create DB per test run //
sqllocaldb create MyFirstDB sqllocaldb start MyFirstDB sqllocaldb query MyFirstDB "SELECT @@VERSION" You’ll be surprised how easy real SQL Server can be. Have a favorite SqlLocalDb trick? Share it in the comments!
As developers, we love local development environments —no network latency, no connection strings with passwords, and zero risk of accidentally deleting production data.