by Craig S. Mullins | May 25, 2022 | enclave, enclave SRB, SRB, TCB, zIIP
Many Db2 DBAs first hear about Task Control Blocks (TCBs) and Service Request Blocks (SRBs) in an IBM performance class, but not everyone has taken one of those classes. And even for those who have, a refresher is probably in order.At a high level, for mainframe z/OS...
by Craig S. Mullins | Apr 20, 2022 | IMS
As a Db2 consultant and regular blogger I often receive questions about technical things, but also on strategy and industry trends. I try to help but I always make it clear when answering that I cannot predict the future, only make educated guesses... So with that...
by Craig S. Mullins | Apr 7, 2022 | Uncategorized
Today, April 7, 2022, the IBM mainframe officially celebrates its 58th birthday. The IBM 360 was launched on April 7, 1964 and the world of enterprise computing has never been the same.I'm old enough to remember in the early 1990s when Stewart Alsop of...
by Craig S. Mullins | Mar 9, 2022 | conference, idug
Well, it looks like this year IDUG will be a live, in-person event again after a couple years of living virtually. The COVID pandemic took its toll on IT events and conferences, but I, for one, am looking forward to getting back out there and mingling – safely – with...
by Craig S. Mullins | Feb 8, 2022 | UDFs
A user-defined function, or UDF for short, enables you to customize Db2 to your shop's requirements. It is a very powerful feature that can be used to add procedural functionality, coded by the user, to Db2. The UDF, once coded and implemented...
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