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SQL

Master SQL from basics to advanced with our structured, practical, and easy-to-follow course. Gain hands-on skills to confidently manage, analyze, and query databases. Each module is designed to reinforce your learning through practical examples and exercises.

sql course

Introduction to Databases

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Understanding Relational Databases

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SQL vs NoSQL: When to Use What

sql course

Overview of SQL Syntax and Structure

sql course

Setting Up Your SQL Environment (SQLite, MySQL, PostgreSQL)

sql course

Creating Your First Database and Table

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Basic Data Types in SQL

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Introduction to the SELECT Statement

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Using the WHERE Clause for Filtering

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Logical Operators in SQL: AND, OR, NOT

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Sorting Results with ORDER BY in SQL

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Using LIMIT and OFFSET in SQL

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Table of Contents

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Aggregate Functions in SQL: COUNT, SUM, AVG, MIN, MAX

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Grouping Data with GROUP BY in SQL

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Filtering Groups with HAVING in SQL

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Aliasing Columns and Tables in SQL

sql course

Using the IN, BETWEEN, and LIKE Operators in SQL

sql course

Using the IN, BETWEEN, and LIKE Operators in SQL

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Basic Subqueries and Their Use Cases in SQL

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Understanding Joins in SQL

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INNER JOIN in SQL Explained with Examples

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LEFT JOIN vs RIGHT JOIN in SQL — A Detailed Comparison...

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FULL OUTER JOIN and CROSS JOIN in SQL — Concepts and...

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Joining More Than Two Tables in SQL

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Using Self-Joins in SQL

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Creating Relationships with Foreign Keys in SQL

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Combining Results with UNION and UNION ALL in SQL

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Subqueries vs Joins: When to Use Each in SQL

sql course

Nested Subqueries and Derived Tables in SQL

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