Blog
SQL, data, and practical AI — plain English. Filter by topic or search.
All articles
What is a semantic layer?
A semantic layer is the shared business meaning of metrics and dimensions above raw tables. Learn how it stops three versions of revenue, where it sits in the…
Building a portfolio that gets interviews
Pretty dashboards do not get interviews. Part 2 of Analyst career path shows a portfolio path from question to decision writeup, plus a scoring rubric that favors clarity…
What is dbt (conceptually)?
dbt is not magic BI. This guide explains SQL models, tests, and docs, plus staging, intermediate, and marts layers, so analysts who inherit warehouse transforms know what the…
I want AI on my files and office work
You want AI on files, mail, and office work. This part maps Claude Cowork, ChatGPT Work, Gemini in Workspace, and Grok in Outlook to where the files already…
Gemini app and web: first 30 minutes
A timed first thirty minutes in the Gemini app and web: confirm your account, run one real low-risk task, revise once, and save the artifact outside the chat…
