sharp_zenith_9156
Exemplar
Top 2.7%
Member Nº 1821
Joined Jun 2026
SQL
Window Deduplication
Common Table Expressions
Storage Optimization
Python
Modules
Arithmetic
Variables
Spark
Window Deduplication
Multiple Windows
Distribution Functions
Data Modeling
Junction Tables
Indexing
Composite Keys
Solved
Python0
Spark0
Data Modeling0
Milestones
30 active days
7-day streak
995 runs in the past 26 weeksActive days: 32 · Max streak: 14
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Recent solves
Keys & Identity
Data Modeling · medium · lesson
Relationships, What Are Relationships? Challenge 2
Data Modeling · medium · lesson
Relationships, What Are Relationships? Challenge 1
Data Modeling · medium · lesson
Top N Per Group: Beginner
SQL · easy · lesson
Top N Per Group: Beginner
SQL · easy · lesson
Both Ways
SQL · hard
Roll Call
SQL · easy
Window Functions: Advanced, Windows and Partitioning Challenge 2
SQL · medium · lesson
Window Functions: Advanced, Windows and Partitioning Challenge 1
SQL · medium · lesson
Window Functions: Advanced, Windows vs Self-Joins Challenge 2
SQL · medium · lesson