Published onApril 5, 2024Mastering EF Core Relationships: One-to-One, One-to-Many, and Many-to-Many in .NET.netcsharpentity-frameworkefcorerelationshipsfluent-apiEvery EF Core relationship bug traces back to a misunderstood foreign key or a missing configuration. One-to-one, one-to-many, and many-to-many mapped explicitly with the Fluent API, and where EF Core's conventions quietly get it wrong.