In modern application development, integrating a robust relational database is essential. PostgreSQL, a powerful open-source RDBMS, is a popular choice among developers. This guide will walk you th
Database Migrations with Liquibase in Spring Boot 3
Managing database schema changes in modern applications can be complex, especially in microservices or cloud-native environments. One of the most efficient ways to handle this challenge is by using
Flyway Database Migrations in Spring Boot 3 – Step-by-Step Guide
Managing database schema changes in a consistent, version-controlled way is critical for modern applications. While schema.sql and data.sql work for basic bootstrapping, Flyway is a professional-gr
Database Initialization in Spring Boot
When working with Spring Boot and relational databases, initializing your database schema and loading seed data is a common requirement. Database Initialization in Spring Boot is easy using two fil
Advanced JPA Criteria Queries in Spring Boot
Spring Data JPA gives us simple methods like findByName() or custom queries using @Query. But when you need to build dynamic, complex queries at runtime (especially with multiple filters), Criteria
Native Queries in Spring Data JPA : @Query Annotation
pring Data JPA is powerful. In most cases, you can get away with method naming conventions like findByUsername, or using derived queries. But sometimes, you need more control — like using custom
DTO Mapping in Spring Boot : Best Practices
In Spring Boot applications, especially those using REST APIs, you often don’t want to expose your Entity classes directly to the client. That’s where DTOs (Data Transfer Objects) come in. DTOs
Entity Relationships in Spring Data JPA
In real-world applications, data is often related. For example: Entity Relationships in Spring Data JPA (with Hibernate) allows you to map these relationships easily using annotations. This guide w
Introduction to Spring Data JPA with Hibernate
When you’re building a Java application, you often need to store and retrieve data from a database. Writing this code manually can be repetitive and error-prone. Luckily, Spring Data JPA and
Pagination and Sorting in Spring Boot REST APIs
When your API deals with large datasets — like fetching thousands of users or records — loading everything at once is inefficient. That’s where pagination and sorting come in. They help l