Indexes
Indexes make queries fast by pre-sorting rows by chosen fields.
Difficulty 2/5
Short
Plain English
Indexes make queries fast by pre-sorting rows by chosen fields. Picture it like this: Tabs in a binder so you find pages quickly. In the apps you ship (Agentify, wedding portals, CRM), you will bump into this on almost every screen — name it clearly when you prompt your coding agent.
Analogy
Tabs in a binder so you find pages quickly.
Go deeper
Indexes make queries fast by pre-sorting rows by chosen fields.
Common mistakes
- Letting the AI rename this concept three different ways in one PR.
- Building UI before you can say what is stored and who can change it.
AI-agent trap
Agents may invent jargon here. Ask them to explain the concept in plain English first, then map it to your schema and one real screen.
Summary
Indexes make queries fast by pre-sorting rows by chosen fields. Tabs in a binder so you find pages quickly. Ask yourself: where does this live in the database, which function changes it, and which screen shows it?
Confidence: