If you are a director, manager or project manager who works with DBAs, you probably have had the nagging suspicion at one time or another that a DBA’s assertions regarding his or her practices lack an empirical or scientific basis, or are simply deflections intended to pass the buck.
Manager: Mr. DBA, the application is really slow. Do you have any idea what’s wrong?
DBA: Oracle is very complex. It could be any of 100 different possible causes. I will begin checking each. Anyhow, what makes you think it is the database?
Some DBAs are professional, thoughtful scientific-minded contributors. But the sad truth is that many DBAs lack the skills to professionally manage their systems. To cover, they use deflections such as the example above, or fall back on old, long-disproved practices without the benefit of evidence. Why is this[Read more...]