Recent releases of Db2 have introduced new SQL functionality that improves the functionality and productivity of application developers. But the DBA can also take advantage of some of the “new” Db2 SQL to improve their own productivity.
You have probably heard about Db2 12 Dynamic SQL plan stability already. However, before you decide to activate it, you should learn more first. This article is going to help you on your journey to stabilize your dynamic world.
Con las funciones de OLAP RANK y DENSE_RANK disponibles en programación SQL desde hace un tiempo, resulta bastante fácil preguntar por las «n» ocurrencias de valor más alto en un conjunto de datos ordenado. Lo que se conoce como «TOP n».
Do you make any New Year's resolutions? In case you don't have any Db2 related, we have a suggestion for you. What if you start the New Year with improving the performance of your SQL queries? Learn more about the advanced query tuning by listening to the presentation by Tony Andrews.
Have you heard about the Lateral join? In short - lateral join or lateral correlation is simply a reference in a nested table expression to a column of a table identified at the same level in the FROM clause. Learn the basics in this article.