Technology
Databases
Understand how databases store, query, and scale data—and learn to explain the trade-offs clearly in a system design interview.
01
The Biggest Differentiator Between Relational and Columnar Databases
How storage layout, ACID properties, the CAP theorem, and scaling shape the choice between relational and columnar databases.
7 min read
02
Why Is a Relational Database Not the Right Choice for a Time-Series System?
A simple book-and-library analogy for understanding why relational databases struggle with large time-series workloads.
8 min read
03
Time-Series Databases
Understanding the properties, data volume, storage design, and uniqueness model of a time-series database.
5 min read