Oracle Scratchpad

November 13, 2006

Trust

Filed under: Non-technical — Jonathan Lewis @ 10:23 am UTC Nov 13,2006

Here’s a guideline on how much trust to place in advice you get from articles about Oracle published on the Internet:

  • If it’s not dated – don’t assume it’s true
  • If its date is more than about 18 months old – don’t assume it’s (still) true
  • If there’s no version number – don’t assume it’s true
  • If it’s not your exact version number – don’t assume it’s (still) true
  • For ‘technical implementation’ details, if there’s no platform mentioned – don’t assume it’s true
  • For ‘technical implementation’ details, if the platform’s not the same as yours – don’t assume it’s true
  • If there’s no rational justification supplied,  and no repeatable test case – don’t assume it’s true.

And even when all the details are perfect and there is a repeatable test case - and even after the repeatable test case produces the same results – ask yourself this question:

“Could there be a different explanation for the same set of results – and if so, how badly could this advice damage my system, and how hard would it be to test my alternative hypothesis ?”

Once you’ve got through that lot – then you might be safe trying the advice on a development system.

9 Comments »

  1. I trust your lack of trust! :)
    Cheers
    Tim…

    Comment by Tim Hall — November 13, 2006 @ 11:29 am UTC Nov 13,2006 | Reply

  2. Excellent! You just thrown away approximately 90% of Internet content ;) So be it.

    Comment by Q u a d r o — November 13, 2006 @ 12:18 pm UTC Nov 13,2006 | Reply

  3. Quadro, Only 90% ?! I was hoping for a much better hit ratio ;-)
    I did say “Don’t assume” – it’s not quite as terminal as “throw away”.

    Comment by Jonathan Lewis — November 13, 2006 @ 12:56 pm UTC Nov 13,2006 | Reply

  4. So don’t assume that for someone “don’t assume” doesn’t mean “throw away” :)

    Comment by Q u a d r o — November 13, 2006 @ 1:03 pm UTC Nov 13,2006 | Reply

  5. Thanks Jonathan!!! Thanks a lot!!! I was going to try and come up with some kind of consolidated documentation on hints. You just put a coming soon sign on that page. Just Kidding. If I proceed with my idea, I will definitely make sure that there is some truth to that story.

    Comment by Kirtan Desai — November 13, 2006 @ 2:20 pm UTC Nov 13,2006 | Reply

  6. [...] All three articles were written more than three years ago; so when you review them, remember the advice I gave in an earlier post. [...]

    Pingback by Bitmap Indexes « Oracle Scratchpad — November 29, 2006 @ 10:38 pm UTC Nov 29,2006 | Reply

  7. most excellent! ;-)
    I’ll put that in my presentation — if I may– courtsy JL wordpress blogsite ;-)

    Comment by cos — January 30, 2007 @ 6:35 pm UTC Jan 30,2007 | Reply

  8. [...] for those of you who do want to live by “caveat emptor”, here’s a guideline that might help you avoid being burnt too often. Comments [...]

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