SQL Operation Order
Introduction In this article, we are going to see what is the standard SQL operation order. Once you understand the order in which SQL operations are executed, then it will be clear why the Oracle legacy pagination query required a Derived Table in order to make sure that the ROWNUM pseudocolumn is computed after executing the ORDER BY clause.
PostgreSQL Auto Explain
Introduction In this article, we are going to see how the PostgreSQL Auto Explain feature works and why you should use it to gather the actual execution plan for SQL statements that execute on a production system.
The best way to use SQL NOWAIT
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.
