Скачать или смотреть L4: SQL Constraints | NOT NULL, UNIQUE, PRIMARY KEY | Class 12 Sem 4 Computer Application & Science

In this SQL lecture, we learn SQL Constraints in MySQL for Class 12 Computer Application & Computer Science. All constraints are explained with examples in simple English + Bengali for real understanding.

WhatsApp group for Notes & other Study Materials 👇👇
https://linktr.ee/learnwithsubha

Complete SQL Playlist :    • SQL || Class 12 Semester 4 || Unit 2 || Co...  

📘 Topics Covered
• What are Constraints in SQL?
• Why Constraints are Required
• Types of Constraints:
→ NOT NULL
→ UNIQUE
→ PRIMARY KEY
→ FOREIGN KEY
→ CHECK
→ DEFAULT
• Syntax + Practical Examples of Each
• How Constraints Maintain Data Integrity
• Real-time Use Cases

👉 Don’t forget to Like 👍, Share 🔄 & Subscribe 🔔 for more lectures on COMA & COMS !

Complete Class 12 Semester 4 COMA+COMS Playlist 👇👇
   • Complete Class 12 Semester 4 (WBCHSE) Comp...  

📌 Watch now to strengthen your foundation skills and improve your board exam scores.

----------------------
🔎 Your Queries:
----------------------
sql constraints, mysql constraints, not null, unique constraint, primary key, foreign key, check constraint, default constraint, sql lecture constraints, sql class 12, wbchse sql, sql constraints examples, dbms sql constraints, sql integrity constraints, class 12 sql lecture, sql constraint syntax, mysql constraint tutorial, sql bengali explanation, mysql beginner tutorial, foreign key reference, sql primary foreign key, sql data restriction, database integrity constraint, create table constraint, alter table constraint, sql constraint types class 12, dbms constraints wbchse, sql unique key, sql check example, sql default example, mysql constraint explanation, sql theory class 12, sql primary key example, constraint in sql class 12, constraint syntax mysql, sql table creation with constraints, sql database rules, sql reference key, mysql class 12 lecture, sql for computer application, sql for computer science, wbchse dbms sql, sql full chapter class 12, integrity constraint mysql, mysql constraint commands, wbchse semester 4 sql, sql default value, constraint remove add alter, sql table level constraints, sql constraint demo, sql practical class 12, dbms constraints examples

Hashtags:
===========
#SQL #SQLConstraints #MySQL #DBMS #Class12SQL #WBCHSE #ComputerApplication #ComputerScience #PrimaryKey #ForeignKey #Unique #NotNull #CheckConstraint #DefaultConstraint #SQLLecture #LearnSQL #SQLWithExamples #Wbchse2025 #SQLBasics #DBMSLecture