ocean_vole_8730
Warden
Top 7.8%
Member Nº 4778
Joined Aug 2026
SQL
Inequality Joins
Window Frames
Self-Join
Python
Modules
Iteration
Boolean Operators
Spark
Spark Execution Model
Broadcast Join
Data Modeling
Metric Additivity
Grain Definition
SCD Strategy
Pipeline Architecture
SCD in Pipelines
Late-Arriving Data
Event Streaming Platforms
Solved
SQL6
Python3
Spark0
Data Modeling0
Milestones
First milestone at 10 problems solved.
1,032 runs in the past 26 weeksActive days: 10 · Max streak: 5
MarAprMayJunJulAugSep
Recent solves
The Small Side Is the Way Out
Spark · easy · lesson
What Travels Light
Spark · easy · lesson
The Small Side Stays Still
Spark · easy · lesson
Eight Megabytes
Spark · easy · lesson
Revenue per category, lookup broadcast
Spark · easy · lesson
The Catalog That Fits in Memory
Spark · easy · lesson
The Catalog and the Crowd
Spark · easy · lesson
The Small Side You Send Everywhere
Spark · easy · lesson
The Small Side Is Your Way Out
Spark · easy · lesson
Small Enough to Travel
Spark · easy · lesson