Bypass GeneratedValue in Hibernate (merge data not in db?) Bypassing Generated Value in Hibernate Merging Data Not in Database When using Hibernate a common requirement is to insert or update entities that rely on autom 3 min read 08-10-2024 33
JPA: Query that returns multiple entities JPA Query That Returns Multiple Entities When working with Java Persistence API JPA one common task developers face is querying multiple entities from a databas 3 min read 08-10-2024 25
can someone please explain me @MapsId in hibernate? Understanding Maps Id in Hibernate A Comprehensive Guide When working with Hibernate and JPA Java Persistence API developers often come across various annotatio 3 min read 08-10-2024 32
Get the last inserted record's primary key How to Retrieve the Last Inserted Records Primary Key When working with databases a common task is to retrieve the primary key of the last inserted record This 3 min read 08-10-2024 23
Finding items with a set containing all elements of a given set with jpql Finding Items with a Set Containing All Elements of a Given Set Using JPQL Understanding the Problem In modern applications handling data relationships efficien 3 min read 08-10-2024 24
retrieving List<Entity> from List<Object[]> JPA Transforming JPA List Object into a List Entity A Guide to Efficient Data Retrieval When working with JPA Java Persistence API and performing queries that retur 3 min read 07-10-2024 27
Creating PostgreSQL array types like "text[]" using JPA (EclipseLink) Beyond Simple Strings Working with Postgre SQL Arrays in JPA Eclipse Link Postgre SQLs array data type offers a powerful way to store and manipulate multiple va 3 min read 07-10-2024 25
Cannot apply class transformer without LoadTimeWeaver specified Unraveling the Cannot apply class transformer without Load Time Weaver specified Error in Spring Boot Have you ever encountered the perplexing Cannot apply clas 2 min read 07-10-2024 27
Use Hibernate to save objects to the database Saving Objects to the Database with Hibernate A Step by Step Guide Hibernate a powerful Java persistence framework simplifies the process of interacting with re 2 min read 07-10-2024 27
Crud method for query of enum list field in Spring Data JPA CRUD Operations with Enum Lists in Spring Data JPA Problem Working with entities that have list fields containing Enum values in Spring Data JPA can be tricky Y 2 min read 07-10-2024 26
Relational database foreign keys in Spring Boot JPA/Hibernate Understanding and Implementing Foreign Keys in Spring Boot with JPA Hibernate Relational databases are the foundation of many applications and understanding how 2 min read 07-10-2024 26
How to construct an insert query in JPA Persisting Data with Ease Constructing Insert Queries in JPA Introduction Java Persistence API JPA is a powerful tool for simplifying database interactions in J 2 min read 07-10-2024 41
Spring Boot: does @Entity Annotation exist? Spring Boot Does the Entity Annotation Exist Spring Boot is a popular framework for building Java applications especially RES Tful web services A common questio 2 min read 07-10-2024 36
Spring DATA JPA how to write a method which use contant value for a field to fetch data Spring Data JPA Fetching Data with Constant Field Values Spring Data JPA simplifies data access with its powerful repository abstraction But what if you need to 2 min read 07-10-2024 46
H2 not creating/updating table in my Spring Boot app. Something's wrong with my Entity? H2 Database Not Creating or Updating Tables A Spring Boot Entity Decoding Problem You re building a Spring Boot application with an H2 database You ve defined y 3 min read 07-10-2024 46
Spring Data JPA JPQL list in constructor Spring Data JPA Constructing Entities with JPQL and Lists Spring Data JPA is a powerful tool for simplifying data access in Spring applications It leverages JPA 3 min read 06-10-2024 36
Jackson triggering JPA Lazy Fetching on serialization Jackson and JPA Lazy Fetching A Match Made in Heaven or Hell You ve got a Spring Boot application using JPA to manage your database and you re using Jackson to 3 min read 06-10-2024 37
Hibernate:collection with cascade=”all-delete-orphan” was no longer referenced by the owning entity instance Hibernates Cascade All Delete Orphan A Deep Dive into Relationships and Deletion Hibernate the popular Java persistence framework simplifies object relational m 3 min read 06-10-2024 42
Spring Boot - JpaRepository not initializing when using multiple DataSources Spring Boot Why Jpa Repository Fails to Initialize with Multiple Data Sources Have you ever encountered the frustrating issue where your Jpa Repository refuses 3 min read 06-10-2024 48
@PersistenceContext is not applicable to parameters. How to inject EntityManager through a constructor? Persistence Context Wont Work on Parameters Injecting Entity Manager Through Constructors in JPA Have you ever encountered the error Persistence Context is not 2 min read 06-10-2024 51
Error creating bean with name 'requestMappingHandlerAdapter' defined in class path resource. I got this error When want to launch my application Error creating bean with name request Mapping Handler Adapter Decoding Spring Boots Web Configuration Headaches Ever encountered the dreaded Error creating bean 3 min read 06-10-2024 46
"package javax.persistence does not exist" using spring-data-jpa and IntelliJ Package javax persistence Does Not Exist A Spring Data JPA and Intelli J Headache Solved Are you facing the dreaded package javax persistence does not exist err 3 min read 06-10-2024 44
A column in a table is referred to by multiple physical column names The Curious Case of Multiple Physical Column Names for a Single Logical Column A Deep Dive into Database Design Problem You re working with a database and encou 2 min read 06-10-2024 47
SpringBoot Multi-tenant app with scheduled tasks Building a Multi Tenant Spring Boot Application with Scheduled Tasks Multi tenant applications are becoming increasingly popular offering a cost effective way t 3 min read 06-10-2024 43
Spring Boot JPA native query for enum values Querying Enum Values in Spring Boot JPA with Native Queries The use of enums enumerations is a common practice in Java to represent a fixed set of values for a 2 min read 06-10-2024 46