PlanetScale Development
The Database for Developers
PlanetScale brings Git-like workflows to database development. Built on Vitess (the technology powering YouTube), it offers database branching, non-blocking schema changes, and horizontal scaling for MySQL applications.
What is PlanetScale?
PlanetScale is a serverless MySQL-compatible database platform built on Vitess, the technology that powers YouTube's databases. It offers horizontal scaling, non-blocking schema changes, and a developer-friendly experience with branching workflows similar to Git.
We use PlanetScale when clients specifically require MySQL compatibility or when the database branching workflow is particularly valuable for the team. For most new projects without MySQL requirements, we recommend PostgreSQL options like Supabase or Neon.
Perfect For
- Applications specifically requiring MySQL
- Teams wanting database branching workflows
- High-scale applications needing sharding
- Zero-downtime deployment requirements
- Serverless auto-scaling needs
- Development workflows similar to Git
Consider Alternatives
- PostgreSQL-preferred projects (use Neon, Supabase)
- Applications requiring foreign key enforcement
- Simple projects not needing branching
- Budget-constrained projects
Key Features
What makes PlanetScale unique for MySQL development
Database Branching
Git-like workflow for database development. Create isolated branches for features, test changes safely, then merge to production.
Non-Blocking Schema Changes
Apply schema changes without downtime. PlanetScale handles migrations in the background while your application keeps running.
Horizontal Scaling
Built on Vitess, the technology that scales YouTube's databases. Scale reads and writes with automatic sharding.
Deploy Requests
Review and approve schema changes like pull requests. See exactly what will change before deploying to production.
Instant Rollbacks
Revert schema changes instantly if something goes wrong. Safely experiment knowing you can always go back.
Query Insights
Performance monitoring and analytics for your queries. Identify slow queries and optimize database performance.
Database Branching Workflow
Create a Branch
Create an isolated database branch for your feature development. The branch has the same schema as production but separate data.
Make Schema Changes
Develop and test your schema changes safely on the branch. No risk to production data or availability.
Create Deploy Request
Request to deploy your changes. Review the diff showing exactly what will change in production, like a pull request.
Deploy with Zero Downtime
Merge changes to production. PlanetScale applies them with non-blocking migrations - your app keeps running.
Popular Tech Stacks
PlanetScale integrates well in these modern stacks
Serverless Stack
Full-stack serverless with type-safe database
PHP Stack
Modern PHP with serverless MySQL
Ruby Stack
Ruby applications with scalable database
Our PlanetScale Expertise
When We Choose PlanetScale
- Client requires MySQL compatibility
- Database branching workflow is valuable
- Horizontal scaling is needed
- Zero-downtime schema changes critical
When We Recommend Alternatives
- PostgreSQL features needed (use Supabase/Neon)
- All-in-one backend needed (use Supabase)
- Foreign key enforcement important
- Budget is a primary concern
Understanding the Foreign Key Trade-off
PlanetScale doesn't enforce foreign keys at the database level because Vitess sharding cannot guarantee referential integrity across shards. This is a deliberate trade-off for horizontal scaling.
How to handle this:
- - Add indexes on columns that would be foreign keys
- - Use Prisma with relationMode = "prisma" for ORM-level relations
- - Enforce referential integrity in application code
- - Consider PostgreSQL if FKs are critical for your use case
Frequently Asked Questions
Need MySQL with Modern Workflows?
Let us help you evaluate whether PlanetScale is right for your project, or if another database solution would better fit your needs.
Get a Free Consultation