SQL learning wave online
A cluster of social posts this week pushed free SQL learning paths and recommendations—everything from a free data-analytics roadmap to a 'Practical SQL (2nd Edition)' pick and a beginner SELECT-to-joins roadmap. These resources emphasize SQL as the entry point for turning raw campaign data into actionable insights. (x.com) (x.com) (x.com)
A flurry of posts this week amplified a community 6‑week SQL syllabus on GitHub that lays out weekly milestones from basics through aggregations and GROUP BY. (github.com) That surge ran alongside widely used, longer-form learning plans: Roadmap.sh’s updated SQL guide for 2026 and DataCamp’s 12‑month “SQL Roadmap” blog published June 4, 2025. (roadmap.sh) (datacamp.com) Anthony DeBarros’s Practical SQL, 2nd Edition — a 464‑page beginner-to-intermediate guide first published Jan. 25, 2022 — appeared repeatedly as a recommended textbook in the thread. (books.google.com) (nostarch.com) The author’s companion GitHub repository publishes the book’s code and datasets and explicitly uses U.S. Census and other government data in worked examples. (github.com) Several shared roadmaps and repos call out a strict SELECT → JOIN progression, include 50+ practice queries and structured hands‑on projects, and offer stepwise tasks for data cleaning and aggregation. (github.com 1) (github.com 2) The set of promoted materials collectively supplies downloadable SQL scripts, repeatable public datasets, and project templates that can be adapted into campaign‑attribution models or competitive‑brand dashboards for portfolio pieces. (github.com)
