glad_dune_8179
Exemplar
Top 2.7%
Member Nº 3448
Joined Jul 2026
SQL
Correlated Subquery
Self-Join
Array Flattening
Python
Context Managers
Modules
File Context Manager
Spark
Higher-Order Functions
Exploding Arrays
Time Zones
Data Modeling
Metric Additivity
Junction Tables
Grain Definition
Pipeline Architecture
DAG Orchestration
Batch Processing
Solved
Pipeline Architecture0
Milestones
Top 2% SQL
Strong Hire
50 solved
Solution author
7-day streak
530 runs in the past 26 weeksActive days: 25 · Max streak: 9
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Recent solves
Data Types: Advanced
SQL · medium · lesson
Data Types: Advanced
SQL · medium · lesson
Data Types: Advanced
SQL · medium · lesson
Data Types: Advanced, Compression and error handling Challenge 3
SQL · easy · lesson
Data Types: Advanced, Compression and error handling Challenge 2
SQL · medium · lesson
Data Types: Advanced, Compression and error handling Challenge 1
SQL · medium · lesson
Data Types: Advanced, Compression and error handling Challenge 4
SQL · easy · lesson
Data Types: Advanced, Accessing nested data (UNNEST) Challenge 1
SQL · medium · lesson
Data Types: Advanced, MAP data type for key-value pairs Challenge 2
SQL · medium · lesson
Data Types: Advanced, MAP data type for key-value pairs Challenge 1
SQL · medium · lesson