[DAY 17] HINDI Complete SQL Tutorial | DDL, DML, Joins, Constraints | Database Design for Developers

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🚀 Advanced SQL concepts sikhiye! CREATE TABLE, Constraints, Joins, Aggregations - production-ready database design.

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0:00 - Course Introduction
7:46 - Types of SQL Statements (DDL, DML, DCL, TCL)
13:30 - CREATE TABLE, Constraints, Primary Key, Foreign Key
35:32 - ALTER TABLE (ADD, MODIFY, DROP columns)
38:56 - DML - INSERT, UPDATE, DELETE Operations
43:24 - JOINS Explained (INNER, LEFT, RIGHT, FULL)
59:24 - Aggregations, GROUP BY, HAVING with Joins
1:10:08 - Message from Faisal

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Video notes: [COMING SOON]
Video Details + Syllabus + Study Plan: https://docs.google.com/spreadsheets/...
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📚 IS VIDEO MEIN AAP SIKHENGE:

✅ SQL statement types (DDL, DML, DCL, TCL)
✅ CREATE TABLE with constraints
✅ Primary Key & Foreign Key relationships
✅ ALTER TABLE operations
✅ INSERT, UPDATE, DELETE queries
✅ All types of JOINS with examples
✅ Complex aggregations with joins
✅ Real-world database design

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🎯 KEY CONCEPTS:

🔹 SQL Statement Categories
• DDL (Data Definition Language) - CREATE, ALTER, DROP
• DML (Data Manipulation Language) - INSERT, UPDATE, DELETE
• DCL (Data Control Language) - GRANT, REVOKE
• TCL (Transaction Control Language) - COMMIT, ROLLBACK

🔹 Table Constraints
• PRIMARY KEY - Unique identifier
• FOREIGN KEY - Relationship between tables
• NOT NULL - Mandatory fields
• UNIQUE - No duplicate values
• CHECK - Custom validation
• DEFAULT - Default values

🔹 Types of JOINS
• INNER JOIN - Matching records from both tables
• LEFT JOIN - All from left + matching from right
• RIGHT JOIN - All from right + matching from left
• FULL OUTER JOIN - All records from both tables
• CROSS JOIN - Cartesian product

🔹 Advanced Queries
• Aggregations with JOINS
• GROUP BY with multiple tables
• HAVING clause with joins
• Subqueries in WHERE

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