SENIOR DATA ANALYST · SQL · PREPVECTOR CHALLENGE

PrepVector 15-Day
SQL Challenge.

15 Challenges 6 Concepts 100% Completed

A complete walkthrough of PrepVector’s 15-Day SQL Challenge — showcasing advanced SQL problem-solving across window functions, CTEs, joins, subqueries, aggregations, and date logic. Every challenge solved, documented, and available on GitHub.

@HanifaElahi View original challenge ↗

Window Functions Aggregations

CTEs Joins Date Logic

Subqueries Analytical SQL

PrepVector 15-DaySQL Challenge.

PrepVector 15-Day
SQL Challenge.