How would you perform validation of data before inserting into the database using ADO.NET?

Short answer: Data validation ensures that the data being inserted into the database is correct and consistent. You can perform validation at various stages, including the client side (e.g., using JavaScript in a web application) and server side (using ADO.NET). Steps for Server-Side Validation:

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.