Wow, this is scary: A company called Sentrigo just published a study about how DBAs patch Oracle databases. Even though you could challenge their findings (they asked only 305 people) and therefore only shows half the truth, it is really scary (I quote):
Where does this come from? I am no Oracle specialist (I just to work on this DB decades ago) this is worrying me from two perspectives: It is a significant risk to the industry and I am worrying whether this is the same with SQL Server (even though our figures show a different picture). Is this because people are afraid of the downtime because of the reboots? Are they afraid that their application could break? Is it ignorance? Is it lack of tools? A really interesting question.
You probably remember my post regarding Oracle DBAs rarely install patches . It was about a study where