Learning to Think in Sets, Not Loops

Short summary

An article arguing SQL is a declarative mindset, not just syntax, and that thinking in loops leads to bad queries. It covers schema design, index strategy, and heuristics like avoiding SELECT *, reading execution plans, and optimizing before caching. The core message: avoiding SQL doesn't simplify systems, it hides complexity where it's harder to fix.

• •SQL requires shifting from imperative to declarative set-based thinking
• •Good schema design and targeted indexes matter more than syntax knowledge
• •Avoiding SQL moves complexity into harder-to-debug places

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