You add an entity, run dotnet ef migrations add AddOrders, and the tooling stops dead: Unable to create an object of type 'AppDbContext'. For the different patterns supported at design time, see https
Most teams I work with stayed on EF Core 8 because it was the LTS release, and now they are looking at EF Core 10, the next LTS, and want to skip 9 entirely. That instinct is right, but it hides a tra
If you have hit System.InvalidOperationException: The instance of entity type 'X' cannot be tracked because another instance with the same key value for {'Id'} is already being tracked, you are lookin
You update an order status from Pending to Confirmed, call SaveChangesAsync, and get a clean 200 response. The next GET request on that order comes back Pending. You check the database directly — the
The way your team loads related data in Entity Framework Core shapes production performance more than most architectural decisions ever will. Every navigation property access is a potential N+1 query.
Applying EF Core migrations to a production database is one of the highest-risk operations your team performs. Unlike a code deployment, a schema change is hard to undo, can block active transactions,
