SQL

🧠 Welcome to the Complete SQL Course – Learn SQL from Scratch!

Hey there future techie! 👋

Welcome to Vikas G Online, your new digital adda to learn tech the smart and simple way! 😎

If you’ve ever heard the word SQL and wondered what kind of “magic spell” it is… or if terms like SELECT, JOIN, and DATABASE confuse you more than Monday mornings, you’re in the right place!

🤔 What is this course all about?

In this course, we’ll break down Structured Query Language (SQL) — the real language of data. Whether you're preparing for a career in tech, planning to become a developer, data analyst, or just want to impress your nerdy friends – SQL is a must-have skill.

And the best part? We’re going to learn it step-by-step, in simple language, with real examples, and zero boring lectures. 💯

🚀 Who is this course for?

✅ Complete Beginners – even if you’ve never touched code before

✅ College Students – MCA, BCA, B.Sc., CS, IT, or any tech stream

✅ Bloggers, Freelancers, or Anyone Curious About Data

✅ You – because you’re awesome and curious enough to start something new 💪

🗂️ What will you learn?

📌 How databases work

📌 Writing SQL queries like a pro

📌 Creating, reading, updating, deleting (CRUD operations)

📌 Joining multiple tables (don’t worry, it’s fun)

📌 Real-world SQL mini-projects

📌 And a lot more… with cool explanations and humor along the way 😉

So buckle up, open your brain, and let’s start your SQL journey from zero to hero.

Complete SQL Course - Chapter Titles

🔰 Beginner Level: Basics of SQL

1. Introduction to SQL and Databases
2. Setting Up SQL Environment & Writing Your First Query
3. Basic SQL Syntax and Conventions
4. Understanding Tables, Rows, and Columns
5. Creating a Database and Table (CREATE)
6. Inserting Data into Tables (INSERT)
7. Retrieving Data from Tables (SELECT)
8. Filtering Data with WHERE Clause
9. Using Comparison Operators and Logical Operators
10. Sorting Data with ORDER BY
11. Limiting Results with LIMIT / TOP

🟡 Intermediate Level: Working with Data

1. Updating Records (UPDATE)
2. Deleting Records (DELETE)
3. SQL Functions: COUNT, SUM, AVG, MIN, MAX
4. Grouping Data with GROUP BY
5. Filtering Groups with HAVING Clause
6. Using Aliases (AS)
7. Pattern Matching with LIKE and Wildcards
8. Working with NULL values

🔵 Joins and Relationships

1. Understanding Relationships in Tables
2. Introduction to SQL Joins
3. INNER JOIN Explained
4. LEFT JOIN (LEFT OUTER JOIN)
5. RIGHT JOIN (RIGHT OUTER JOIN)
6. FULL OUTER JOIN
7. CROSS JOIN
8. SELF JOIN
9. Using Joins with Multiple Tables

🟣 Advanced SQL Concepts

1. Subqueries and Nested SELECTs
2. Using EXISTS and IN with Subqueries
3. UNION, INTERSECT, and EXCEPT
4. Creating Views (VIEW)
5. Indexes in SQL
6. Constraints: PRIMARY KEY, FOREIGN KEY, UNIQUE, CHECK, DEFAULT
7. Transactions in SQL (BEGIN, COMMIT, ROLLBACK)
8. Stored Procedures and Functions
9. Triggers in SQL
10. Handling Errors and Exceptions

⚙️ SQL for Real Projects

1. Designing a Simple SQL-Based Project
2. Sample Project: Library Database
3. Sample Project: Student Record System
4. How to Write Optimized SQL Queries
5. Common Interview Questions on SQL&nbsp;<div>&nbsp;SQL Best Practices and Tips