Welcome to your journey through the world of database systems! Use this index to navigate the course, jump to any chapter, or revisit topics as needed.
Hello! I'm Ahmad Bilal, a Senior Full Stack Engineer with over 5 years of hands-on experience. I specialize in architecting and deploying secure, scalable backend systems and cloud infrastructure, with a strong focus on DevOps practices. My passion is helping engineers bridge the gap between theory and real-world application—so you can build systems that are robust, efficient, and ready for scale.
I'm excited to guide you through this course and share the insights, lessons, and best practices I've learned in the field. Let's level up your database engineering skills together!
- Start from the beginning for a structured learning path, or jump to topics that interest you.
- Each chapter ends with a quiz and navigation links.
- Return here anytime to find your next lesson!
- 🎉 Introduction & Welcome
Course overview, prerequisites, and how to get the most from this journey. - 💎 ACID Properties in Database Systems
The foundation of reliable transactions: Atomicity, Consistency, Isolation, Durability. - 🏗️ Database Internals
How tables, pages, and indexes are stored on disk. - 🏷️ Indexing
Types of indexes, how they work, and best practices for query optimization. - 🌳 B-Trees & B+Trees
The data structures powering fast lookups and range queries. - 🧩 Partitioning
Splitting large tables for performance and manageability. - 🪓 Sharding
Scaling databases horizontally across servers. - 🔄 Concurrency Control
Locks, isolation levels, and how databases handle simultaneous transactions. - 🔁 Replication
Keeping data consistent and available across multiple instances. - 🏗️ System Design
Real-world database architectures and design patterns. - ⚙️ Database Engines
Comparing MySQL, PostgreSQL, and storage engines. - 🧭 Cursors
Row-by-row processing and when to use cursors. - 🔒 Security
Authentication, authorization, encryption, and securing APIs. - 🧬 Homomorphic Encryption
Querying encrypted data and privacy-preserving techniques. - ❓ Q&A
Answers to common questions and deeper dives into tricky topics. - 💬 Discussions
Community-driven insights, query optimization, and storage debates. - 🧩 Database Fundamentals & Recovery
Key lessons and advanced concepts from core database topics. - 🎓 Course Closing & Further Reading
Final thoughts, real-world tips, and resources for continued learning.
Start with the Introduction & Welcome or pick any chapter from above!
Happy learning! 🚀