How do you write a basic CRUD operation (Insert / Update / Delete / Read) in EF Core?

Short answer: // Create context.Users.Add(new User { Name = "John" }); context.SaveChanges(); // Read var user = context.Users.FirstOrDefault(u => u.Id == 1); // Update user.Name = "Jane"; context.SaveChanges(); // Delete context.Users.Remove(user); context.SaveChanges();

Example code

// Create context.Users.Add(new User { Name = "John" }); context.SaveChanges(); // Read var user = context.Users.FirstOrDefault(u => u.Id == 1); // Update user.Name = "Jane"; context.SaveChanges(); // Delete context.Users.Remove(user); context.SaveChanges();

Real-world example (ShopNest)

ShopNest’s order service uses EF Core to save an Order and its line items in one SaveChangesAsync() call inside a transaction.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.