How can you define a composite key in Entity Framework?
- Creating a separate table for each key component
- Enabling auto-increment on a single column
- Using a unique constraint
- Using the [Key] attribute on multiple properties
In Entity Framework, a composite key is defined by using the [Key] attribute on multiple properties within an entity class. This tells Entity Framework that the combination of these properties forms a unique identifier for each record in the table. Composite keys are useful when a single property cannot uniquely identify records, and a combination of properties is needed for this purpose.
Loading...
Related Quiz
- What is the primary purpose of model validation in Entity Framework?
- In Table Splitting, how are related entities loaded into the context?
- In a high-load scenario, how does implementing a Caching strategy affect Entity Framework performance?
- For ensuring data integrity across multiple related entities, Entity Framework can use ________ to enforce complex validation scenarios.
- What are the considerations when using Entity Framework with a service-oriented architecture?