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Data Systems Unpacked: A Beginner's Hands-On Guide to Building Reliable and Scalable Application
Paperback
Publisher: Independently Published
Published: Jun 28 2026
Pages: 242
Weight: 0.94
Height: 0.51 Width: 7.00 Depth: 10.00
Language: English
Your database works perfectly in development. In production, it lies to you.
Queries slow to a crawl under real traffic. Two users buy the same last item in stock. A network hiccup lasting less than a second leaves your system unsure whether a payment went through. Nobody warned you about this part of building software - until now.
Data Systems Unpacked is the practical, beginner-friendly guide to understanding how data infrastructure actually works - and why it fails. Written for developers with no prior distributed systems experience, every concept in this book is grounded in real code you can run, break, and learn from on your own machine.
Inside you will discover:
- How databases actually store and retrieve your data - and why that matters when things slow down
- Why replication lag causes bugs your tests will never catch
- How transactions prevent data corruption - and what happens when they don't
- The real difference between consistency and availability, and when to choose each one
- How to build batch pipelines that process millions of rows reliably
- How to stream real-time events with Kafka without losing data
- How to audit your systems for GDPR compliance before regulators do it for you
Every chapter ends with a hands-on project. You will build a key-value store from scratch, deliberately trigger race conditions in PostgreSQL, set up live database replication with Docker, and stream real events through Kafka - all from your laptop.
By the last page, you will stop guessing why your database slows down and start making deliberate, confident decisions about how to design systems that hold up when real users show up.
If you have ever felt like data infrastructure is a black box controlled by people smarter than you this book was written to prove that wrong.
Scroll up and grab your copy today.
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