Database Migrations Skill

Overview

Manage database schema changes with version control, migration tools, and safe deployment practices.

Topics Covered

Migration Tools

• Flyway
• Liquibase
• Alembic (Python)
• Prisma migrations
• TypeORM migrations

Migration Patterns

• Incremental changes
• Reversible migrations
• Data migrations
• Zero-downtime migrations
• Blue-green deployments

Version Control

• Migration versioning
• Baseline management
• Migration history
• Conflict resolution
• Team workflows

Best Practices

• Small, focused changes
• Testing migrations
• Rollback strategies
• Documentation
• CI/CD integration

Prerequisites

• SQL fundamentals
• Version control basics

Learning Outcomes

• Create safe migrations
• Use migration tools
• Deploy without downtime
• Manage schema versions