SQL Constraints Explained: Primary Key, Foreign Key, NOT NULL, UNIQUE, and More - Tamil

Master SQL constraints with this beginner-friendly tutorial! 🚀 Learn about: Primary Key: Ensure unique identification of each row in a table. Foreign Key: Establish relationships between tables. NOT NULL: Prevent null values in critical columns. UNIQUE: Enforce unique values in a column. CHECK: Validate data against specified conditions. CASCADE Referential Integrity: Maintain data consistency with cascading actions. Whether you're a student, developer, or data enthusiast, this video will help you understand the foundation of database integrity. Perfect for SQL learners aiming to level up th…