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An Introductory Guide to SQL

Gain insights into SQL by exploring database creation, data manipulation, and advanced queries. Learn about practical applications and practice for SQL interviews to build confidence and readiness.

4.7

98 Lessons

13h

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Learning Roadmap

98 Lessons78 Quizzes

Introduction

Get familiar with SQL’s evolution, relational vs non-relational databases, and MySQL's architecture.

Introduction

Relational vs Non-Relational

MySQL History & Architecture

Basic SQL

Look at MySQL basics: databases, data types, tables, querying, and data manipulation.

Joins

6 Lessons

Break apart SQL joins, including inner, outer, self, left, right, and natural joins.

Nested Queries

5 Lessons

Break down complex ideas in nested scalar, column, row queries, EXISTS and correlated queries.

Multi Table Operations

4 Lessons

Dig into multi-table delete and update operations, SELECT/INSERT efficiency, and the REPLACE command.

Views

5 Lessons

See how it works with SQL views creation, data integrity, updating, and management techniques.

Stored Procedures

10 Lessons

Piece together the parts of stored procedures, variables, parameters, statements, cursors, error handling, and functions in SQL.

Triggers

6 Lessons

Learn how to use SQL triggers for data integrity, logging, archiving, and managing multiple actions.

Miscellaneous

3 Lessons

Discover the logic behind transactions, EXPLAIN statement, and foreign keys for data integrity.

10.

Practice & Prep

29 Lessons

Go hands-on with SQL queries to enhance database management and data analysis skills.

11.

Epilogue

Find out about giving feedback and acknowledging contributors to enhance course quality.

Feedback

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Developed by MAANG Engineers

ABOUT THIS COURSE

The ability to work SQL is becoming an increasingly in-demand skill, both for software developers and people in less technical roles. If you’re interested in learning SQL and have no prior experience with it, then this course will be your light in a dark tunnel. You’ll start by covering the basics of SQL such as how to create a database, how to insert, query, and update data. You’ll also learn fundamental concepts that developers and data scientists use everyday such as multi-table operations, nested queries, and how to set up views. Throughout, you’ll get to execute SQL queries in your browser and see results in real-time - you won’t need to worry about set-up. At the end of this course, you’ll also get some hands-on practice with common SQL interview questions, so when the time comes, you’ll be ready and confident to answer any question that comes your way. Let’s get started!

ABOUT THE AUTHOR

DataJek

A bay area tech outfit, throwing lots of good ideas on the wall to see what sticks!

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Frequently Asked Questions

How do I start learning SQL?

You can start learning SQL by following these steps:

Sign up for online courses if you prefer a more structured learning environment. These courses often provide a comprehensive overview of SQL
Create your own database for practical experience. Regular practice with SQL queries on real-world datasets is invaluable
Engage with problems available online to sharpen your skills
Participate in online forums and communities. These platforms offer support, insights, and help in solving specific queries
Attend SQL workshops and webinars, which can provide you with up-to-date knowledge and networking opportunities

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