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lone_salmon_4802

Rank #176
DataDrivenDataDriven
Exemplar
Top 2.6%
Member Nº 4014
Joined Aug 2026
ziadasal
SQLPYSPKDMPA
SQL
Conditional Aggregation
Self-Join
Timestamp Types
Python
Frequency Counting
Dict Iteration
Guard Clauses
Spark
Shuffle Optimization
Distributed Primitives
Memory Management
Data Modeling
Metric Additivity
Solved
36SOLVED
Milestones
Top 9% SQL
10 solved
688 runs in the past 26 weeksActive days: 25 · Max streak: 5
MayJunJulAugSepOct
Recent solves
Top Region by Order Volume
SQL · medium
3 days ago
Partitioning: Beginner, The Small-Files Problem Challenge 2
Spark · easy · lesson
3 days ago
Partitioning: Beginner, The Small-Files Problem Challenge 1
Spark · easy · lesson
3 days ago
Partitioning: Beginner, Too Few Large Partitions Challenge 2
Spark · easy · lesson
3 days ago
Partitioning: Beginner, Too Few Large Partitions Challenge 1
Spark · easy · lesson
3 days ago
Partitioning: Beginner, Too Many Small Partitions Challenge 1
Spark · easy · lesson
3 days ago
Partitioning: Beginner, What a Partition Is Challenge 1
Spark · easy · lesson
3 days ago
The Long Run
Python · easy
3 days ago
Catalyst Optimizer: Beginner
Spark · easy · lesson
4 days ago
Catalyst Optimizer: Beginner
Spark · easy · lesson
4 days ago
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