aurelian_07
Exemplar
Top 2.6%
Member Nº 1895
Joined Jun 2026
SQL
Common Table Expressions
Storage Optimization
Approximate Aggregates
Spark
Window Deduplication
Exploding Arrays
Regex Functions
Data Modeling
Self-Referential
Many-to-Many
One-to-One
Learned
SQL163
Python2
Milestones
7-day streak
1,114 runs in the past 26 weeksActive days: 20 · Max streak: 10
MayJunJulAugSepOct
Recent solves
NULL Values: Intermediate, Sentinel values and fake NULLs Challenge 4
SQL · medium · lesson
NULL Values: Intermediate, Sentinel values and fake NULLs Challenge 2
SQL · medium · lesson
Aggregating: Intermediate
SQL · medium · lesson
Aggregating: Intermediate
SQL · medium · lesson
Aggregating: Intermediate
SQL · medium · lesson
Aggregating: Intermediate, APPROX_PERCENTILE and ARBITRARY Challenge 3
SQL · medium · lesson
Aggregating: Intermediate, APPROX_PERCENTILE and ARBITRARY Challenge 2
SQL · medium · lesson
Aggregating: Intermediate, ORDER BY with aggregates Challenge 4
SQL · medium · lesson
Aggregating: Intermediate, ORDER BY with aggregates Challenge 2
SQL · medium · lesson
Aggregating: Intermediate, APPROX_DISTINCT (HyperLogLog) Challenge 4
SQL · medium · lesson