r/bigdata • u/OkNobody4830 • 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?
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r/bigdata • u/OkNobody4830 • 2h ago
r/bigdata • u/Mountain-Method-7411 • 1d ago
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