Prompt to Prompt: Database Migrations Taste
Prompt to Prompt: Database Migrations Taste is a verified PROMPT blueprint on Promptally in System & Base Contexts optimized for leading AI models. Curated Coding prompt from awesome-prompts library split. Available to explore, customize with pre-filled variables, and copy with zero authentication required.
Created by @promptallyTechnical Specifications
| Specification | Value |
|---|---|
| Artifact type | PROMPT (System & Base Contexts) |
| Compatible engines | Universal / Model Agnostic |
| Input variables | None (pre-filled) |
| Approximate tokens | 529 |
| Source file | prompt-prompt-database-migrations-taste.txt |
| Access tier | Free public (MIT) |
Pre-Filled Template
# Database Migrations taste - Keep every schema change in a versioned migration file committed next to the code that needs it. Confidence: 0.95 - Write migrations in plain SQL rather than ORM-generated diffs you have not read. Confidence: 0.80 - Never edit a migration that has already run in a shared environment; add a new one instead. Confidence: 0.95 - Use the expand and contract pattern: add the new column, backfill, switch reads, then drop the old column in a later release. Confidence: 0.90 - Make every migration safe to run while the previous app version is still serving traffic. Confidence: 0.90 - Add new columns as nullable or with a constant default to avoid long table rewrites. Confidence: 0.85 - Create indexes on large Postgres tables with CREATE INDEX CONCURRENTLY outside a transaction. Confidence: 0.90 - Set a short lock_timeout and statement_timeout at the top of each migration. Confidence: 0.85 - Run large backfills as batched background jobs, not inside the migration itself. Confidence: 0.90 - Keep one logical change per migration so failures are easy to read and retry. Confidence: 0.80 - Name migration files with a UTC timestamp prefix and a short verb phrase like 20261017_add_orders_status. Confidence: 0.75 - Prefer forward-only migrations and fix mistakes with a new migration instead of relying on down scripts. Confidence: 0.70 - Run migrations as a separate deploy step before the new application code starts. Confidence: 0.85 - Test every migration in CI against a fresh database and against a copy of production-sized data. Confidence: 0.80 - Add foreign keys and check constraints as NOT VALID first, then validate them in a separate step. Confidence: 0.80 - Rename columns and tables only through a view or dual-write period, never in a single step. Confidence: 0.75 - Store the applied migration history in the database and fail the deploy if it has drifted. Confidence: 0.85 - Review migrations as carefully as application code, with the generated SQL visible in the pull request. Confidence: 0.90 - Keep seed and fixture data out of schema migrations. Confidence: 0.80
How to use this prompt
- Review the pre-filled example and source files above.
- Copy the template or download
prompt-prompt-database-migrations-taste.txt, then use it in your model, IDE, or workflow tool. - Compare your result with the sample output when one is provided.
Frequently Asked Questions
How do I use Prompt to Prompt: Database Migrations Taste?
Open the prompt on Promptally, review the pre-filled example, then copy the template or download prompt-prompt-database-migrations-taste.txt and paste it into your model, IDE or workflow tool. Prompt to Prompt: Database Migrations Taste is a static blueprint with no dynamic variables. Copy it and use it as-is.
Is Prompt to Prompt: Database Migrations Taste free?
Yes. Prompt to Prompt: Database Migrations Taste is free to view, copy and download on Promptally without creating an account. It is published under the MIT license.
What variables does Prompt to Prompt: Database Migrations Taste need?
Prompt to Prompt: Database Migrations Taste is a static blueprint with no dynamic variables. Copy it and use it as-is.