✅ CHECK Constraints vs Triggers in SQL | Simple vs Complex Data Validation Explained 👍 In this video, we explain the key differences between **CHECK constraints** and **Triggers** in SQL and help you understand **when to use each one**. You’ll learn how CHECK constraints are used for **simple, fast validations within the same table**, and why **Triggers are essential for handling complex business rules** that CHECK constraints cannot manage. Using a **real-world ATM withdrawal limit example**,