IQueryable

`IQueryable` is a programming feature that allows developers to build and execute complex queries against a data source, like a database, in a flexible way. It enables constructing queries in code that are only fully processed and sent to the database when needed, optimizing performance by fetching only the necessary data. Think of it as a way to prepare a detailed search plan that isn't run until you want the results. This approach allows for efficient, dynamic data retrieval, especially useful when working with large datasets or when query conditions change based on user input or other factors.