https://www.marcobehler.com/guides/jdbc https://www.marcobehler.com/guides/java-databases These are the two articles. Must read for everyone beginning with Databases in the JVM world. I would also write an article on this for new Kotlin programmers who are starting with databases to save them from the nightmare I faced.

If you don't want a specific database, take a look at #kmongo. It's very well made and very easy to use