Spring Boot Guide

Best Databases for Spring Boot (2026)

Compare the best database solutions for Spring Boot. We review PostgreSQL, MySQL, and managed databases with Spring Data JPA integration.

Spring Data JPA provides powerful repository abstractions for database access. We've evaluated managed and self-hosted databases that work well with Spring Boot's data layer.

Why This Matters

Spring Data reduces boilerplate with repository interfaces and query derivation. The right database choice affects JPA features, connection pooling, and cloud deployment patterns.

Key Considerations

Spring Data JPA

JPA with Hibernate is the standard. Works with any JDBC-compatible database. Repository pattern reduces boilerplate.

Connection Pooling

Spring Boot uses HikariCP by default. Configure pool size for your workload. Managed databases may require specific settings.

Flyway/Liquibase

Use Flyway or Liquibase for migrations. Both integrate with Spring Boot auto-configuration.

R2DBC for Reactive

For reactive applications, use Spring Data R2DBC instead of JPA. PostgreSQL and MySQL have R2DBC drivers.

Cloud SQL Proxy

For GCP, use Cloud SQL Proxy. For AWS, configure RDS connection with proper security groups.

Our Recommendations

Neon

Best Serverless Excellent Support Official SDK

Neon provides serverless PostgreSQL that works perfectly with Spring Data JPA. Branching for dev/prod. 512MB free. Scales to zero.

Standard PostgreSQL JDBC driver

Website → Documentation →

PlanetScale

Best MySQL Excellent Support Official SDK

PlanetScale for serverless MySQL. Branching workflow, no foreign keys (use application-level). 5GB free. Great for MySQL shops.

MySQL JDBC with SSL

Website → Documentation →

Supabase

Best All-in-One Excellent Support Official SDK

Supabase PostgreSQL with Spring Data JPA. 500MB free. Get database plus auth, storage, and realtime if needed.

PostgreSQL JDBC driver

Website → Documentation →

Railway

Best with Hosting Excellent Support Official SDK

Railway provides PostgreSQL or MySQL alongside Spring Boot hosting. Unified deployment. $5/month credit.

railway add postgresql

Website → Documentation →

PostgreSQL

Best Self-Hosted Excellent Support Official SDK

Self-hosted PostgreSQL for full control. Best JPA compatibility with advanced features. Widely used in enterprise Java.

spring-boot-starter-data-jpa

Website → Documentation →

Quick Comparison

Service	TypeScript	Edge	Free Tier	Setup Time
Neon	none	—	512MB	5 min
PlanetScale	none	—	5GB	10 min
Supabase	none	—	500MB	5 min
Railway	none	—	$5 credit	5 min
PostgreSQL	none	—	N/A	30 min

Quick Start

Spring Boot Database Configuration application.yml

spring:
  datasource:
    url: jdbc:postgresql://${DB_HOST}:5432/${DB_NAME}
    username: ${DB_USER}
    password: ${DB_PASSWORD}
    hikari:
      maximum-pool-size: 10
  jpa:
    hibernate:
      ddl-auto: validate
    open-in-view: false
  flyway:
    enabled: true

Common Integration Patterns

Neon + Spring Data JPA

Serverless PostgreSQL with Spring Data repositories.

neon

PlanetScale + Flyway

PlanetScale MySQL with Flyway migrations (use safe migrations mode).

planetscale

Railway Full Stack

Spring Boot, PostgreSQL, and Redis on Railway.

railway redis

Frequently Asked Questions

Should I use JPA or JDBC with Spring Boot? ▼

Use JPA (Spring Data JPA) for most applications—it reduces boilerplate significantly. Use Spring Data JDBC for simpler domain models. Use raw JDBC Template only for complex queries.

How do I run migrations in Spring Boot? ▼

Use Flyway or Liquibase. Add the starter dependency and put migrations in src/main/resources/db/migration. They run automatically on startup.

What about connection pooling? ▼

Spring Boot uses HikariCP by default. Configure spring.datasource.hikari.* properties. For serverless databases, you may need lower pool sizes.

Can I use PlanetScale with foreign keys? ▼

PlanetScale doesn't support foreign keys for online schema changes. Use application-level referential integrity. JPA relationships still work, just no DB-level constraints.

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Last updated: January 11, 2026