Introduction In this article, we are going to see what is the best way to use the amazing SQL NOWAIT feature that allows us to avoid blocking when acquiring a row-level lock. Since all the top major database support this functionality, Hibernate offers a NOWAIT option that allows you to render the proper database-specific syntax associated with this feature without risking database portability.
Introduction In this article, we are going to see how we can implement a database job queue using SKIP LOCKED. I decided to write this article while answering this Stack Overflow question asked by Rafael Winterhalter. Since SKIP LOCKED is a lesser-known SQL feature, it’s a good opportunity to show you how to use it and why you should employ it, especially when implementing a job queue task.