Leanpub Header

Skip to main content

SQL and Database Testing: Query Your Way to Quality

From First SELECT to Schema Migrations, NoSQL, and GDPR Compliance

This book is 100% completeLast updated on 2026-07-20

The bugs live in the data. From your first SELECT to migration testing, NoSQL, and GDPR-compliant masking — with exercises all the way.

Minimum price

$4.99

$9.99

You pay

Author earns

$

Also available for 1 book credit with a Reader Membership

PDF
About

About

About the Book

The complete spectrum of database testing for QA engineers. Covers SQL query writing from fundamentals through advanced JOINs, schema migration testing, constraint verification, NoSQL document stores, database performance testing, and GDPR-compliant data masking. Every concept reinforced with hands-on exercises.

It is written for QA engineers with some hands-on experience who want to move from "it works on my machine" to confident, production-grade practice.

This is Book 15 of 26 in The Modern QA Engineer Skillset — the "Technical Foundations" track of a series mapping the complete 2026 QA skill set, from AI-augmented automation to career strategy. Each book stands alone; together they form the curriculum behind modernQAcourse.com.

Bundle

Bundles that include this book

Author

About the Author

Yuri Syuganov

Yuri Syuganov is a software quality engineer with more than twenty years of hands-on testing experience, spanning the arc from manual test design through Selenium-era automation to today's AI-augmented, agent-driven frameworks. He is the author of The Modern QA Engineer Skillset, a 26-book series built on a blunt analysis of what companies actually expect from QA engineers, and the creator of modernQAcourse.com, where the course behind the series is free and readers can bring real testing problems to experienced practitioners. He revises the series as the industry changes — because it does.

The Leanpub 60 Day 100% Happiness Guarantee

Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.

See full terms...

Earn $8 on a $10 Purchase, and $16 on a $20 Purchase

We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.

(Yes, some authors have already earned much more than that on Leanpub.)

In fact, authors have earned over $15 million writing, publishing and selling on Leanpub.

Learn more about writing on Leanpub

Free Updates. DRM Free.

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).

Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.

Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.

Learn more about Leanpub's ebook formats and where to read them

Write and Publish on Leanpub

You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!

Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.

Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.

Learn more about writing on Leanpub