All Posts

APR 18, 2026

Data Warehousing Fundamentals & Kimball Dimensional Modeling

A practical guide to building business-driven data warehouses. Learn how to bridge the gap between software engineering and analytics using Kimball's dimensional modeling techniques.

Data Warehousing

APR 9, 2026

How Delta Lake Works Under the Hood

Learn how Delta Lake brings ACID transactions and reliability to your object storage data lakes.

Spark

MAR 24, 2026

How Apache Spark Works Under the Hood (Explained Simply)

Learn the building blocks of Spark and how it works under the hood.

Spark

MAR 15, 2026

Narrow vs. Wide Transformations in PySpark

Learn the difference between narrow and wide transformations in Apache Spark and how they impact performance.

Spark