Use a DataAdapter to update the database. Set the InsertCommand,?

Short answer: UpdateCommand, and DeleteCommand properties of the DataAdapter to define how data changes should be applied to the database.

Real-world example (ShopNest)

Always pass order ids with parameters: cmd.Parameters.AddWithValue("@id", orderId). Never concatenate user input into SQL.

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.