Mastering DBMS Series: Class 6 - Foreign Keys, Composite Keys, Joins, DELETE vs TRUNCATE vs DROP

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🔴 Important Links:
🔗 Access all the questions and presentations here: github.com/urguru/Mastering-DBMS-Series/tree/main
🔗 Practice basic SQL queries here: www.sql-practice.com/

🔴 Connect with me here:
Twitter: twitter.com/urguru_4648
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LinkedIn: www.linkedin.com/in/urguru/
GitHub: www.github.com/urguru

🔴 Class Chapters:
1. Introduction and recap - 00:00
2. FOREIGN KEY - 01:03
3. COMPOSITE KEY - 14:13
4. ALTERNATE KEY - 15:15
5. Table Creation Examples - 15:45
6. Domain/Entity/Referential Integrity Constraints - 38:57
7. ADD/RENAME/DELETE Columns - 41:05
8. Student Question - Can we create a new table from the existing table - 44:23
9. Points to remember when deleting a column - 47:45
10. TRUNCATE Table & DELETE vs TRUNCATE vs DROP - 48:37
11. Difference between DELETE /DROP / TRUNCATE - 58:06
12. JOINS - Why do we need joins - 1:00:17
13. Different types of JOINS - 1:04:35
14. INNER JOIN - 1:04:57
15. Thank you - 1:17:45


🔴 Why am I doing this course ?
As a course instructor at Atharvo - an edtech company, I instructed 100 students but faced payment issues. Making class videos public for students' access. Atharvo is fake, neglectful, and unethical company — avoid their courses. They fool students in the name of giving placement to everyone by charging 1000 rupees. Please report if you see this company running ads on social media

🔴 [Playlist]Mastering DBMS Series: From Basics to Advanced -    • Mastering DBMS: From Basics to Advanced  
Class 1 - Introduction to SQL, DDL, DML, and TCL -    • Mastering DBMS Series: Class 1 - Introduct...  
Class 2 - Understanding SELECT, WHERE, ORDER BY, and SQL Operators -    • Mastering DBMS Series: Class 2 - Understan...  
Class 3 - Exploring SQL Operators, Limits, Offset, and Pagination -    • Mastering DBMS Series: Class 3 - Exploring...  
Class 4 - Functions, INSERT, UPDATE, DELETE, and CREATE SQL Commands -    • Mastering DBMS Series: Class 4 - Functions...  
Class 5 - CREATE, ALTER, RENAME, DROP, TRUNCATE, Constraints, and Keys -    • Mastering DBMS Series: Class 5 - CREATE, A...  
Class 6 - Foreign Keys, Composite Keys, Joins, DELETE vs TRUNCATE vs DROP -    • Mastering DBMS Series: Class 6 - Foreign K...…
Class 7 - Exploring Various Joins with Practical Examples -    • Mastering DBMS Series: Class 7 - Exploring...  
Class 8 - Access Control: Privilege Levels, GRANT/REVOKE, and Subqueries -    • Mastering DBMS Series: Class 8 - Access Co...  
Class 9 - Control Flow Functions: IF, CASE, Stored Functions, and More -    • Mastering DBMS Series: Class 9 - Control F...  
Class 10 - Stored Functions, Loops, and Conditional Statements in MySQL -    • Mastering DBMS Series: Class 10 - Stored F...  
Class 11 - Practical Examples of Loops, Stored Procedures, and More -    • Mastering DBMS Series: Class 11 - Practica...  
Class 12 - Mastering Views and Trigger Concepts -    • Mastering DBMS Series: Class 12 - Masterin...  
Class 13 - Events, Index, Cursor, and Real-Life Twitter DB Design Example -    • Mastering DBMS Series: Class 13 - Events, ...  
Class 14 - Design Examples: Twitter, Swiggy, YouTube Case Studies -    • Mastering DBMS Series: Class 14 - Design E...  
Class 15 - Transactions, ACID Properties, and Error Handling Demystified -    • Mastering DBMS Series: Class 15 - Transact...  
Class 16 - Isolation Levels, MySQL Locks, and Effective Data Modeling -    • Mastering DBMS Series: Class 16 - Isolatio...  
Class 17 - ER Diagrams and Database Normalization Explained -    • Mastering DBMS Series: Class 17 - ER Diagr...  
Class 18 - Normalization, MySQL Internals, CAP Theorem, and NoSQL Overview -    • Mastering DBMS Series: Class 18 - Normaliz...