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SQL Portfolio: 5 Real Analyses

Build a SQL-only portfolio of 5 increasingly complex analyses on real public datasets. The strongest entry-level data analyst signal.

PostgreSQL or DuckDBMode / Hex / Jupyter for sharing notebooksGitHub for the writeups

About this project

Strong SQL portfolios beat any certificate for entry-level data analyst hiring. This project teaches the breadth: 5 distinct analyses covering joins, aggregations, window functions, CTEs, and the writing skill of explaining what you found. Use public datasets — NYC Taxi, Chinook, IMDb, Stack Overflow public dump, GitHub Archive.

Why build this in 2026?

SQL fluency is the floor for data analyst roles. A strong portfolio replaces having "1 year experience" on most filters.

What you'll ship

  • 5 published analyses (Mode / Hex / GitHub)
Each with the query + the writeup + at least one chart
README linking them all + your overall narrative

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Skills you'll practice

sqldata analysisdata visualization