Hello folks, JPA (Java Persistence API) is a widely used technology in Java applications for object-relational mapping (ORM) and working with databases. However, when using JPA, you may encounter the "not a managed type" exception, which is a common error that occurs when JPA fails to recognize an entity class as a managed type. This exception can occur due to various reasons, such as incorrect package or class names, missing annotations, or misconfiguration of JPA settings. Fixing this error requires identifying the root cause and taking appropriate steps to resolve it. In this article, we will explore different strategies and solutions to fix the "not a managed type" exception in JPA, helping you overcome this hurdle and successfully work with JPA in your Java applications.
How to configure multiple data sources in Spring Boot? Example Tutorial
Spring Boot is a popular framework for building Java applications that simplifies the development process. In some scenarios, you may need to work with multiple databases or data sources in your Spring Boot application. Earlier, we have seen how to change port of spring boot application and in this article will guide you through the process of configuring and using two data sources in Spring Boot. We will explore various approaches and provide practical examples to help you effectively manage multiple data sources in your application.
Top 5 Udemy Courses to Learn Hibernate and Spring Data JPA in 2025 - Best of Lot
Hello Java programmers, if you want to learn Hibernate and Spring Data JPA, two of the leading persistence framework for enterprise Java development, and need the best resources like books, tutorials, and online courses then you have come to the right place. In the last article, I have shared the best Spring framework courses, and best Hibernate books, and today, I am going to share the best online courses to learn both Hibernate and Spring Data JPA in 2025. These are the top-quality courses from popular online learning platforms and sites like Udemy, Pluralsight, and Baeldung and are trusted by thousands of Java developers around the world to learn these essential frameworks for Java developers.
Top 15 Spring Data JPA Interview Questions with Answers
Hello guys, If you are preparing for a Spring developer interview and looking for some Spring Data JPA Interview questions then you have come to the right place. Earlier, I have shared frequently asked interview questions on Spring Boot, Spring Cloud, Microservices, and Spring MVC in general, and in this article, I will share frequently asked Spring Data JPA Interview Questions with Answers for Java developers. Spring is one of the most popular and widely used frameworks. Spring Data JPA is an important part of the framework as it makes working with JPA or any JPA implementation like Hibernate easier.
Difference between JpaREpository, CrudREpository, and PagingAndSortingRepository
Hello and welcome to my blog post. In this article, we will delve into the world of Spring Data repositories and explore the key differences between three commonly used interfaces: JpaRepository, CrudRepository, and PagingAndSortingRepository. If you're a Spring Boot developer working with databases, understanding the distinctions between these interfaces is crucial for efficient data management. So let's dive right in and uncover the unique features and use cases of each repository interface.
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