PostgreSQL
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Core Java
Store File or byte[] as SQL Blob in Java (Store and Load)
In many applications, you might need to store files or binary data directly in a database. PostgreSQL offers a data…
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Core Java
Insert JSON Object to PostgreSQL using preparedStatement
Storing JSON data in a PostgreSQL database can be quite efficient and effective. PostgreSQL offers two data types to store…
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Enterprise Java
Finding the Max Value in Spring Data JPA
When working with Spring Data JPA, retrieving specific values from a database is a common requirement. One such requirement is…
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Enterprise Java
Integrating Java Enums with JPA and PostgreSQL Enums
Enums are a powerful feature in Java, allowing us to define a fixed set of constants. When using JPA (Java…
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Enterprise Java
Embed PostgreSQL in Spring Boot Testing
Testing is a crucial aspect of software development, ensuring that code functions as expected and integrates well with other components.…
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Enterprise Java
Using Enum in Spring Data JPA Queries
When constructing our persistence layer using Spring Data JPA, we frequently deal with entities that contain enum fields. These enum…
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Enterprise Java
Spring Boot MVC REST Controller Example & Unit Tests
In modern web development, REST APIs are essential for enabling communication between different systems and platforms. The Spring Framework, particularly…
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Enterprise Java
Spring JPA LIKE Query Example With JdbcTemplate or JpaRepository
LIKE queries in SQL allow users to search for specified patterns in the database table columns, enabling flexible and dynamic…
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Enterprise Java
Spring Boot JpaRepository Example
Hello readers let us delve into understanding the Spring Data JPA module. 1. JpaRepository interface Spring Data JPA provides a…
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