jaip3r
Exemplar
Top 2.2%
Member Nº 2838
Joined Jul 2026
SQL
Window Deduplication
Multiple WINDOWs
Common Table Expressions
Python
Modules
Tuples
Strings
Spark
Window Deduplication
Multiple Windows
Exploding Arrays
Data Modeling
Self-Referential
Many-to-Many
One-to-One
Learned
SQL204
Milestones
Top 100
925 runs in the past 26 weeksActive days: 19 · Max streak: 6
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Recent solves
Extract the service type before the first hyphen
SQL · medium · lesson
From api_calls, return call_id, endpoint, and STRPOS(SUBSTR(endpoint, 2), '/') AS next_slash for row
SQL · medium · lesson
From api_calls, return call_id and REPLACE(endpoint, '/api/', '/') AS short_path
SQL · medium · lesson
From api_calls, return call_id and SUBSTR(endpoint, 1, 8) AS prefix for rows where endpoint LIKE '/a
SQL · medium · lesson
Remove the leading 'v' prefix from version numbers in deploy_logs using LTRIM
SQL · medium · lesson
Normalize API endpoints by removing any trailing '/' characters using RTRIM
SQL · medium · lesson
Find the position of the first hyphen in each service name using STRPOS
SQL · medium · lesson
Convert product names to URL-friendly slugs by replacing spaces with underscores and converting to l
SQL · medium · lesson
Replace all hyphens with spaces in server_name
SQL · medium · lesson
Extract the last 3 characters from each version string as version_suffix from the deploy_logs table
SQL · medium · lesson