chief_oak_4893
Exemplar
Top 2.7%
Member Nº 3885
Joined Aug 2026
SQL
Window Frames
Window Deduplication
Storage Optimization
Python
Modules
Splitting & Joining
Lambda
Spark
Window Deduplication
Higher-Order Functions
Exploding Arrays
Data Modeling
Metric Additivity
Solved
Milestones
Steward ×2
Top 3% SQL
Top 4% Python
50 solved
Hire verdict
30 active days
977 runs in the past 26 weeksActive days: 42 · Max streak: 13
MayJunJulAugSepOct
Recent solves
Top N Keys
Python · medium
Engagement by Content Type
SQL · medium
Quality Gate
Python · easy
Break Through
SQL · medium
Seen or Ignored
SQL · medium
Daily and Weekly Active Users
SQL · easy
Tokens With Non-Read Scope Prefix
SQL · medium
Higher Than Supervisor
SQL · easy
Low-Engagement Sessions
SQL · medium
Services With Most Checks in 2025
SQL · hard