vital_lark_6114
Warden
Top 7.8%
Member Nº 1313
Joined May 2026
SQL
Common Table Expressions
Storage Optimization
Window Frames
Python
Generators
Lambda
List Comprehension
Spark
Window Frames
Window Deduplication
Higher-Order Functions
Data Modeling
Self-Referential
Many-to-Many
One-to-One
Solved
SQL13
Python0
Milestones
30 active days
10 solved
7-day streak
First interview
1,281 runs in the past 26 weeksActive days: 32 · Max streak: 8
MarAprMayJunJulAugSep
Recent solves
Error Severity Buckets
SQL · easy
The Row Count Surprise
SQL · easy
Bargains and Budget-Busters
SQL · hard
Above the Fold
SQL · hard
Build Success Rate by Trigger
SQL · medium
Daily Error Count Change
SQL · medium
Cloud Cost Trend Analysis
SQL · medium
7-Check Rolling Average
SQL · medium
Who Stayed
SQL · hard
The Freshest Record
SQL · medium