SQL Beginner to Advance

Welcome to the SQL Notes repository! This collection of notes is designed to guide you through the journey of learning SQL, from the basics to advanced concepts. Whether you are a beginner or preparing for an interview, these notes are crafted to help you understand and master SQL.

Introduction

This repository contains comprehensive notes on SQL, aiming to cover everything from basic concepts to advanced techniques. It is structured to support learners at various stages and serves as a valuable resource for interview preparation.

Getting Started

If you are new to SQL, start with the Basic SQL section. For those looking to deepen their understanding, the Intermediate SQL and Advanced SQL sections offer more complex topics. The Performance Tuning section provides insights into optimizing SQL queries.

Lecture Structure

SQL-Practice/
├── Lecture-1/
│   ├── # Introduction To SQL
├── Lecture-2/
│   ├── # Select Statement in SQL 
│   ├── # Select Statement With 3 Different Ways 
├── Lecture-3/
│   ├── # Where Clause in SQL
│   ├── # Where Clause With Real Life Example 
├── Lecture-4/
│   ├── # Operator Used With Where Clause in SQL
│   ├── # Operator in Where Clause With Example
├── Lecture-5/
│   ├── # Order By Keyword in SQL
│   ├── # Order By With Real Life Example
└── Lecture-6/
│   ├── # AND Operator in SQL 
│   ├── # AND Operator With Example
└── Lecture-7/
│   ├── # OR Operator in SQL 
│   ├── # OR Operator With Example
└── Lecture-8/
│   ├── # NOT Operator in SQL 
│   ├── # NOT Operator With Example
└── Lecture-9/
│   ├── # Insert Into Statement in SQL
│   ├── # Insert Into Operator With Example
└── Lecture-10/
│   ├── # IS NULL & IS NOT NULL in SQL 
│   ├── # Handle Null Values in Database
└── Lecture-11/
│   ├── # Update Statement in SQL
└── Lecture-12/
│   ├── # Delete Statement in SQL
└── Lecture-13/
│   ├── # Select Top Clause in SQL
└── Lecture-14/
│   ├── # Aggregate Function in SQL
└── Lecture-15/
│   ├── # MIN & MAX Function in SQL
└── Lecture-16/
│   ├── # Count Function in SQL
└── Lecture-17/
│   ├── # SUM Function in SQL
└── Lecture-18/
│   ├── # Average Function in SQL
...
└── Lecture-XX/
    ├── #
    ├── #
    └── #

Tools

Online Compiler: https://www.programiz.com/sql/online-compiler/

Download MySQL Workbench: https://dev.mysql.com/downloads/installer/

Contributing

We welcome contributions from the community! If you have notes, examples, or improvements to share, please submit a pull request or open an issue.

Learn DBMS

If you want to know more about DBMS, please visit my DBMS Learn Repository.