SQL Constraints Explained: Primary Key, Foreign Key, NOT NULL & DEFAULT with Examples
🚀 Master SQL Constraints in Minutes! This video covers all essential SQL constraints: PRIMARY KEY, FOREIGN KEY, NOT NULL, DEFAULT — explained with real-world examples and key differences for interviews & projects.
💡 Learn how each constraint works in a relational database, when to use them, and why they matter in SQL development and data management.
🔥 Perfect for beginners, data analysts, developers, and SQL interview prep!
📌 Topics Covered:
- What is a SQL Constraint?
- PRIMARY KEY vs FOREIGN KEY
- NOT NULL and DEFAULT Constraints
- Syntax & Examples
- Real-time use cases
- Key Differences between constraints
🔔 Don’t forget to LIKE, SUBSCRIBE, and hit the BELL ICON for more SQL, Python, Data Analytics, and DBMS content!
📚 Watch More:
📌 SQL Basics for Beginners: https://youtu.be/g2P_lM6qPx0
📌 SQL Interview Questions Playlist: https://youtu.be/gQ84YTz8P4g
#SQL #PrimaryKey #ForeignKey #SQLTutorial #DataAnalytics #LearnSQL #SQLForBeginners #DBMS #SQLConstraints #SQLCommands
Видео SQL Constraints Explained: Primary Key, Foreign Key, NOT NULL & DEFAULT with Examples канала Geekswithraj
💡 Learn how each constraint works in a relational database, when to use them, and why they matter in SQL development and data management.
🔥 Perfect for beginners, data analysts, developers, and SQL interview prep!
📌 Topics Covered:
- What is a SQL Constraint?
- PRIMARY KEY vs FOREIGN KEY
- NOT NULL and DEFAULT Constraints
- Syntax & Examples
- Real-time use cases
- Key Differences between constraints
🔔 Don’t forget to LIKE, SUBSCRIBE, and hit the BELL ICON for more SQL, Python, Data Analytics, and DBMS content!
📚 Watch More:
📌 SQL Basics for Beginners: https://youtu.be/g2P_lM6qPx0
📌 SQL Interview Questions Playlist: https://youtu.be/gQ84YTz8P4g
#SQL #PrimaryKey #ForeignKey #SQLTutorial #DataAnalytics #LearnSQL #SQLForBeginners #DBMS #SQLConstraints #SQLCommands
Видео SQL Constraints Explained: Primary Key, Foreign Key, NOT NULL & DEFAULT with Examples канала Geekswithraj
SQL constraints tutorial what is primary key in sql foreign key vs primary key sql not null constraint in sql default constraint in sql sql constraints explained sql constraints interview questions learn sql from scratch sql for beginners full course sql full tutorial with examples difference between sql constraints real time sql examples data analyst sql tutorial sql dbms full course primary key foreign key explained sql constraints types and examples
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28 июня 2025 г. 9:30:12
00:14:56
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