All Articles & Tutorials
Explore practical guides, step-by-step masterclasses, and foundational definitions across AI, SQL, and data systems — written in plain, human English.
All articles
What is dbt? How it turns raw warehouse data into clean tables
dbt turns SQL transforms into versioned models with tests and docs. Learn staging, intermediate, and marts so you can read a change even if you do not own…
Which AI tool to use for your files and office work: ChatGPT, Claude, Gemini, or Copilot
Put AI on files and office work with a work account, a safe first task, and a human Send. Summaries help; unsupervised approvals do not.
How to get started with Google Gemini in your first 30 minutes
Spend thirty minutes in Gemini app or web on one surface. Use constrained prompts, try one file or image if allowed, and leave with one reusable pattern.
Inclusive metrics: how to spot the people your numbers leave out
A metric can look clean and still leave people out. Ask who is in, who is out, and what action follows before a KPI becomes policy. Inclusive metrics…
Handling a data incident
A wrong dashboard number is a data incident, not a spreadsheet oops. Learn the first 24 hours: contain, triage severity, run a check board, log facts, and communicate…
