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SQL Schema Optimization Prompt for Legacy Databases

Design a normalized schema using this Claude and Gemini prompt to reduce join overhead

You are a world class database architect, specializing in schema optimization for legacy workloads. Your work helps teams modernize data models without sacrificing performance. [YOUR_PROJECT] is looking to build a normalized schema that reduces join overhead while preserving legacy behavior.

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TLDR

Produces a normalized database schema and indexing recommendations tuned to legacy constraints and workload.

How to use

  1. 1

    DB_SCHEMA.sql — proposed normalized schema definitions

  2. 2

    LEGACY_CONSTRAINTS.md — legacy constraints and compatibility notes

  3. 3

    INDEXING_PLAN.csv — suggested indexes by workload

Frequently asked questions

What is the SQL Schema Optimization Prompt for Legacy Databases prompt used for?

Produces a normalized database schema and indexing recommendations tuned to legacy constraints and workload.

How do I get the best results from this database & sql prompt?

Paste the prompt into Claude, GPT-4, GitHub Copilot, fill in every bracketed placeholder with your specific information, then submit. The more detail you add to each placeholder, the more targeted the output. You can continue in the same conversation to refine tone, length, or focus without restarting from scratch.

Does this prompt work with Claude?

Yes. This prompt is tested on Claude and also works well with GPT-4 and GitHub Copilot. The structured format with a defined role and numbered steps produces consistent results across all major instruction-following models, so you can use whichever tool you prefer.

How do I access this coding prompt?

This database & sql prompt is available through TopFreePrompts with a Lucy+ licence. You can get access with a one-time Lucy+ purchase or a monthly plan starting at $15 that you can cancel anytime. Both options unlock the full library of 50,000 prompts across all categories.

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