What are the best practices for using LINQ in ASP.NET Core?

What are the best practices for using LINQ in ASP.NET Core?

Some best practices include using IQueryable for deferred execution, avoiding loading unnecessary data, and using projection to select only the needed fields.

Can you explain why deferred execution is important?

Deferred execution allows LINQ queries to be executed only when the data is actually needed, which can improve performance and reduce memory usage.

What is the difference between IEnumerable and IQueryable?

IEnumerable is used for in-memory collections and executes queries immediately, while IQueryable is designed for querying data from a remote source and supports deferred execution.

How can I optimize my LINQ queries?

You can optimize LINQ queries by using methods like .AsNoTracking() for read-only queries, filtering data as early as possible, and avoiding complex joins.