Drizzle ORM Best Practices (PostgreSQL)

Comprehensive best practices guide for Drizzle ORM with PostgreSQL. Contains guidance across 8 categories, prioritized by impact to help you write correct, performant, and maintainable database code.

When to Apply

Reference these guidelines when:

• Defining table schemas with pgTable
• Writing select, insert, update, or delete queries
• Setting up relations between tables using defineRelations or the legacy relations API
• Configuring drizzle-kit for migrations (generate, push, pull)
• Inferring TypeScript types from your schema
• Choosing between the SQL-like API and the relational query API
• Optimizing query performance with prepared statements or batch operations
• Integrating Drizzle with serverless Postgres providers (Neon, Supabase, etc.)