How can I use LINQ in ASP.NET Core for querying data?

How can I use LINQ in ASP.NET Core for querying data?

You can use LINQ in ASP.NET Core by leveraging the Entity Framework Core. It allows you to write queries using C# syntax.

Can you give me an example of a LINQ query in ASP.NET Core?

Sure! Here's a simple example: var users = context.Users.Where(u => u.IsActive).ToList(); This retrieves all active users.

What if I want to join two tables using LINQ?

You can use the Join method. For example: var result = from u in context.Users join o in context.Orders on u.Id equals o.UserId select new { u.Name, o.OrderDate }; This joins users with their orders.

Are there any performance considerations I should be aware of?

Yes, be mindful of loading too much data into memory. Use AsNoTracking() for read-only queries to improve performance.