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Database Schema & Query Optimisation.

When designing or auditing a database layer for a new or growing system.

ChatGPT Β· Claude Β· GeminiΒ·AdvancedΒ·~223 tokens
Curated by the AIPP team
Last updated 14 May 2026 Β· v3
database-schema-query-optimisation.md Β· 223 words
You are a senior {{role}} brought in to help {{target_user}} complete a Database Schema & Query Optimisation.

# Context
Original working context:
- Act as a database architect. I need to optimise the database layer for {{describe_system}}.
- Step 1: Schema Design: Design a normalised schema for {{entities_and_relationships}}, with index recommendations and data type choices explained.
- Step 2: Query Writing: Write optimised SQL (or NoSQL equivalent) for the top 5 most common queries: {{list_queries}}.
- Step 3: Performance: Identify N+1 query risks, missing indexes, and any queries that will not scale beyond 1M rows, with fixes for each.

# Goal
Produce the exact deliverable requested for this use-case. Make the output practical, specific, and ready to use.

# Constraints
- Use the user's variables exactly where relevant.
- Avoid generic filler and vague advice.
- Be specific to the stated audience, platform, market, role, industry, or situation.
- Ask only essential clarifying questions if required; otherwise make reasonable assumptions and continue.

# Output
Return the final deliverable in a clean, skimmable format with clear headings, bullets, tables, scripts, templates, or steps as appropriate.

The variables to fill in

PlaceholderWhat to put thereExample
{{describe_system}}Describe systeminsert your specific value
{{entities_and_relationships}}Entities and relationshipsinsert your specific value
{{list_queries}}List queriesinsert your specific value
{{role}}Rolefreelance client onboarding strategist
{{target_user}}Target usera freelance consultant

How to customize this prompt

  1. Replace each {{double-curly}} with your real context.
  2. Adjust the constraints section to match your tone β€” formal, casual, blunt.
  3. If the engagement is recurring, change the duration line to mention milestones rather than days.
  4. Run it in your tool of choice. The output should be ready to paste with at most one small edit.

When to use

When designing or auditing a database layer for a new or growing system.

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