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Java 16 Records with JPA and jOOQ

The new Java version 16 includes a new feature: Records

The new Java version 16 includes a new feature: Records.....

20.04.2021

Use the Power of your Database: XML and JSON

Today databases have a lot of functionality that is often not used by software developers because they simply do not know that this exists.
But knowing about these features can save a lot of time because you may write less code.

Today databases have a lot of functionality that is often not used by software developers because they simply do not know that this exists. But .....

06.11.2020

Vaadin Tip: Lazy Loading and Item Identity

When using grids, trees, or any other of the multi-valued component with Vaadin you often want to display data from a database table, and typically you have more than a few rows in the database.
In this case loading, thousands or even millions of records don’t make sense and would be a huge performance problem.

When using grids, trees, or any other of the multi-valued component with Vaadin you often want to display data from a database table, and typically .....

15.06.2020

Type Safe SQL in Java

No matter if you are using frameworks like JPA, MyBatis or Spring Data JDBC you always end up declaring the SQL statements as a Java String.

No matter if you are using frameworks like JPA, MyBatis or Spring Data JDBC you always end up declaring the SQL statements as a Java String......

28.06.2019

Java Persistence Done Right

When it comes to accessing relational databases with Java, people usually think of two options: SQL or ORM

When it comes to accessing relational databases with Java, people usually think of two options: SQL or ORM.....

07.06.2019

Introduction to Database Migrations with Spring Boot and Flyway

If you are working with Spring Boot there are several ways to initialize the database.

If you are working with Spring Boot there are several ways to initialize the database......

20.11.2018

How to JOIN two Entities without Mapped Relationship

Often you don’t want to map all relationships in an entity model (a blog post about this topic in detail will follow).

Often you don’t want to map all relationships in an entity model (a blog post about this topic in detail will follow)......

29.05.2018

Inheritance in JPA

Relational databases have tables and columns and object-oriented programming languages have classes and fields but they also provide inheritance.

Relational databases have tables and columns and object-oriented programming languages have classes and fields but they also provide inheritance......

22.05.2018

Should you use Enums with JPA?

With JPA it’s possible to map Java enums to columns in a database table using the Enumerated annotation.

With JPA it’s possible to map Java enums to columns in a database table using the Enumerated annotation......

02.04.2018