Database Migration FAQs

Question 1

Which database frameworks does it support?

Accepted Answer

The skill provides specialized guidance and code patterns specifically for SQLite, GRDB.swift, and Apple’s SwiftData framework, ensuring framework-specific best practices are followed.

Question 2

How does this skill prevent data loss in production?

Accepted Answer

It enforces strict 'additive-only' patterns, prohibiting high-risk actions like DROP TABLE or column deletion. It also mandates the use of nullable columns and idempotency checks to ensure migrations are safe and repeatable.

Question 3

How does it improve the development workflow?

Accepted Answer

It streamlines the migration process by providing ready-to-use safe patterns and comprehensive testing checklists. This reduces the risk of production crashes and saves time spent debugging migration-related errors.

Question 4

What does the Database Migration skill do?

Accepted Answer

This skill equips Claude with expert knowledge for executing safe, data-loss-free database schema updates. It focuses on production-ready patterns for iOS and macOS applications using SQLite, GRDB, and SwiftData.

Question 5

When should I use this skill?

Accepted Answer

Use this skill whenever you need to add or modify database columns, resolve 'FOREIGN KEY constraint failed' or 'no such column' errors, or perform complex schema refactoring on a live app with existing user data.

Database Migration

Database Migration

Key Features

Use Cases

Key Features

Use Cases