basic_jaguar_1290
Exemplar
Top 2.6%
Member Nº 1191
Joined May 2026
SQL
Common Table Expressions
Conditional Aggregation
Scalar Subquery
Python
Modules
Arithmetic
Spark
Exploding Arrays
Regex Functions
Catalyst Optimizer
Data Modeling
Self-Referential
Many-to-Many
Metric Additivity
Solved
Milestones
Top 1% SQL
50 solved
417 runs in the past 26 weeksActive days: 7 · Max streak: 5
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Recent solves
Query Structure: Beginner, Expressions in SELECT Challenge 2
SQL · easy · lesson
Query Structure: Beginner, AS aliases for columns Challenge 3
SQL · easy · lesson
Query Structure: Beginner, Selecting all columns (*) Challenge 3
SQL · easy · lesson
Query Structure: Beginner
SQL · medium · lesson
Query Structure: Beginner, AS aliases for columns Challenge 1
SQL · medium · lesson
Query Structure: Beginner, Selecting all columns (*) Challenge 1
SQL · medium · lesson
Query Structure: Beginner, Expressions in SELECT Challenge 1
SQL · medium · lesson
Query Structure: Beginner, SELECT and FROM basics Challenge 1
SQL · medium · lesson
Query Structure: Beginner, SELECT and FROM basics Challenge 3
SQL · easy · lesson
Query Structure: Beginner, Tables, rows, and columns Challenge 1
SQL · easy · lesson