Spring Boot Tutorial 0/110 lessons ~6 min read Lesson 26“Production-grade backends”

PostgreSQL Integration

PostgreSQL is the database of choice for serious backends in 2026: JSONB, full-text search, partitioning, generated columns, array types, robust replication.

Course progress0%

Focus

3 guided sections

Practice signal

Examples included

Career prep

Foundation builder

Introduction

PostgreSQL is the database of choice for serious backends in 2026: JSONB, full-text search, partitioning, generated columns, array types, robust replication. Treat it as your default.

Informative example

bash

# pom.xml
<dependency>
  <groupId>org.postgresql</groupId>
  <artifactId>postgresql</artifactId>
  <scope>runtime</scope>
</dependency>

# application.yml
spring:
  datasource:
    url: jdbc:postgresql://localhost:5432/orders
    username: ${DB_USER}
    password: ${DB_PASS}
    hikari:
      maximum-pool-size: 20
      minimum-idle: 5
  jpa:
    hibernate:
      ddl-auto: validate
    properties:
      hibernate.dialect: org.hibernate.dialect.PostgreSQLDialect
      hibernate.jdbc.batch_size: 50

Best practices

Enable pg_stat_statements — query performance is invisible without it.
Use JSONB columns sparingly — they hide schema from your team.
Run EXPLAIN (ANALYZE, BUFFERS) on every slow query.

Ready to mark this lesson complete?Track your journey across the entire course.