my blog. for you.

Let’s talk digital.

I’m an independent IT consultant and entrepreneur in the Internet and software business. I’m interested in design, enterprise applications, web apps and SaaS products. I design and develop business solutions and applications. I help companies in terms of software quality and knowledge transfer, e.g. with Angular and Spring Boot.

Everything new in Spring Security 6 baked with a Spring Boot 3 recipe by Laur Spilca @ Spring I/O

Read more

Do you really need Hibernate by Simon Martinelli @ Spring I/O 2023

Read more

Schematic – A Database Management UI for Spring Boot

Out of my own need for an embedded database management tool for Spring Boot web applications, similar to the H2 Console, but for non-embedded databases, I've created Schematic - a database management UI for Spring Boot. Specifically, for the Workshops.DE Spring Boot course, some time ago we had decided to replace a development-time, embedded H2 database (and the console application that comes with it) with a more realistic (in that it brings our code closer to an assumed dev / prod parity, ... Read more

R2DBC: Reactive Relational Database Connectivity for Java and Spring

As I mentioned in a blog post last week with Reactor and Spring WebFlux reactive programming has come to Java and the Spring platform. R2DBC is relatively new project that aims to "to bring a reactive programming API to relational data stores". While currently still considered experimental, R2DBC endeavours to introduce reactive programming to how we access relational databases (reactive relational, hence the R2 in the name). This means that instead of the traditional way of querying SQL databases imperatively with prepared statements ... Read more

Modern SQL by Markus Winand

Last year, I attended an event during which SQL trainer and consultant Markus Winand gave an aptly titled talk on Modern SQL: Evolution of a dinosaur (the linked video is not from that event but it shows the same talk given at another event). Markus runs a website called Modern SQL, which provides an impressive range of SQL tips, best practices, descriptions of both highly useful and lesser known SQL features and comparisons between the various relational database management systems (RDBMS) available ... Read more

Using Spring JdbcTemplate Instead of Object-Relational Mapping

Spring JDBC and Spring JdbcTemplate in particular has become my go-to tool for accessing relational databases for quite some time now and for good reason in my opinion: The common way for using data from an RDBMS in an object-oriented context used to be and for the most part still is object-relational mapping (ORM) frameworks like the Java Persistence API (JPA) or Rails' ActiveRecord. As the name suggests these frameworks attempt to map data (and concepts) from relational, set-oriented data structures, which ... Read more