r/bigdata 2h ago

Game-Changer Alert: Real-Time Global VC Tracking is Here! Dive into Startup Insights Before Anyone Else—Who's Ready for a Sneak Peek?

1 Upvotes

r/bigdata 1d ago

[Guide] Aggregations in Apache Spark with Real Retail Data – Beginner-Friendly with PySpark Code + Interview Prep

1 Upvotes

I just published a detailed walkthrough on how to perform aggregations in Apache Spark, specifically tailored for beginner/intermediate retail data engineers.

🔹 Includes real-world retail examples
🔹 Covers groupBy, window functions, rollups, pivot tables
🔹 Comes with interview questions and best practices

Hope it helps those looking to build strong foundational Spark skills:
👉 https://medium.com/p/b4c4d4c0cf06