SQLhelper/ ├── SQLhelper-back/ # Backend API (Express + TypeScript) │ ├── src/ │ │ ├── index.ts # Application entry point │ │ ├── routes/ # API route handlers │ │ ├── services/ # Business logic ...
A structured, example-driven documentation repository covering core SQL concepts, real-world query patterns, and essential performance considerations. This repository is designed to be clear, ...
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