All Articles & Tutorials
Explore practical guides, step-by-step masterclasses, and foundational definitions across AI, SQL, and data systems — written in plain, human English.
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How to use slash commands in Claude Code
Part 3 of the Claude Code tutorial. Type slash to find commands, Tab to complete them, and use shell patterns like claude -c and claude -p so you…
How to use Python and SQL together for data analysis
Use SQL for large filters and governed aggregates, then polish results in pandas. Learn a read_sql hybrid pattern, when each tool wins, and how to review AI-generated code…
How to study hard topics with ChatGPT by making it quiz you
Part 4 of the ChatGPT everyday tutorial. Study hard topics with explain-simply loops, quizzes, teach-back, Study Mode ideas, and the mistakes that turn “learning” into copy-paste theater.
How to ask Claude Code about your codebase before you let it change anything
Part 2 of the Claude Code tutorial. Talk to a repo in three beats: ask for a map with real paths, explore until you know what might break,…
How to export pandas results and hand them off so others can use them
Finish the job with clean CSV exports, optional Parquet or SQL loads, and short metadata notes for every file. Learn what each destination needs so BI tools and…
