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/CASE STUDY — SQL · DATA · 2026

SQL Practice — Query Collection

A focused collection of SQL scripts built for hands-on practice with the query patterns that come up constantly in real data work — subqueries, conditional aggregation with HAVING, EXISTS operators, and correlated queries — organized around core relational database operations.

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/01

The Problem

I wanted focused, hands-on practice with the SQL patterns that come up constantly in real data work — subqueries, conditional aggregation, and correlated queries — beyond what a single course project would cover.

/02

What I Did

I built and organized a collection of SQL scripts covering core relational database operations: subqueries, HAVING clauses, EXISTS operators, and correlated subqueries, applied across data manipulation and analysis tasks.

/03

What I Found

Working through these patterns repeatedly built real fluency with query structures I now reach for naturally when exploring a new dataset, rather than looking them up each time.

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