En este artículo, Emil Kotrc reflexiona sobre los temores en el campo de las Bases de Datos expuestos por el Dr. Michael Stonebraker en una reciente presentación.
In the early days of DB2 for z/OS, pretty much every change to a table would result in an unload-drop-recreate-load of the table. This article will talk about how the ALTER table in DB2 12 for z/OS has evolved from DB2 11 for z/OS and what you need to know from a practical point of view.
In DB2 11
This article starts a serial devoted to Db2 for z/OS System Profiles. Profiles are still not widely used and known while they represent a strong capability allowing to automatically tune the system. This introductory article discusses how you can define and activate a system profile.
With the many new features introduced in 126.96.36.199, not to be overlooked are some of the enhancements made in the area of Recovery and Availability.
A significant step forward in this regard is the introduction in DB2 12 for z/OS of a major new feature called “PBR RPN” which transforms the management of range-partitioned table spaces. But what really is PBR RPN and why should it matter to me?