CHECK Constraint

# Check Constraint: Ensuring Data Integrity in SQL Databases Data is the lifeblood of any application. But what happens when that data is incorrect, incomplete, or inconsistent? Your application falters, and your users lose trust. This is where **Check Constraints** in SQL come to the rescue. Imagine a gatekeeper for your database. A Check Constraint acts precisely like that, meticulously examining each piece of incoming data to ensure it meets your pre-defined rules. By enforcing these rule