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Analytics and AI without the intimidation. Plain-language guides to SQL, data work, and practical AI. Examples you can use at work, a little humor, no PhD required.
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What is Grok Bot? xAI’s always-on AI agent and how to use it safely
Grok Bot is xAI's always-on AI agent: it has its own cloud computer, signs into your apps, and keeps working on a job between check-ins. Here is where it fits among Grok products, who can use it, and how to keep it under control.
- SQL · November 10, 2024 · 14 min read
SQL Tutorial 13: Strategies for Maintenance and Optimization
Keep databases healthy over time with backups you can restore, slow query awareness, stats and vacuum concepts, access grants, and on-call hygiene. Close the SQL series with a full path recap and next learning links.
- Analytics · September 6, 2026 · 12 min read
A/B tests intuition for analysts
A/B tests need a clear unit, a primary metric, and honest peeking rules. A green checkmark with +3.2% lift can still be calendar-driven science if you stop early.
- Models · October 10, 2026 · 11 min read
How to start using Qwen, Alibaba’s AI chatbot
Use official Qwen chat with Max, Plus, or Turbo on purpose, and turn Web Search off when the source of truth is the PDF in your hand. Verify specs before the dock.
- Data work · September 11, 2026 · 13 min read
When to stop prompting an AI chatbot and do the task yourself
Prompting has a clock. When facts, feeling, or your signature matter, close the chat and do the task yourself.
