SQL Constraints Explained | What is Constraint, Why & NOT NULL vs UNIQUE скачать в хорошем качестве

SQL Constraints Explained | What is Constraint, Why & NOT NULL vs UNIQUE

In this video, we will understand SQL Constraints in a simple and beginner-friendly way. You’ll learn: ✔ What is a constraint in SQL ✔ Why constraints are important in databases ✔ Different types of SQL constraints ✔ NOT NULL constraint explained with examples ✔ UNIQUE constraint explained with examples ✔ Difference between NOT NULL and UNIQUE Constraints help maintain data integrity and accuracy in a database. If you’re learning SQL for Data Engineering, Data Analysis, or Data Science, this video will strengthen your foundation. This tutorial is perfect for: • SQL beginners • Students learning DBMS • Data Analysts & Data Engineers • Anyone preparing for SQL interviews 📌 Note: This video focuses on NOT NULL and UNIQUE constraints only. Other constraints like PRIMARY KEY, FOREIGN KEY, CHECK, and DEFAULT will be covered in upcoming videos. 🔔 Subscribe for daily SQL and Data concepts explained slowly and clearly — just like a personal tutor.