I would add a #3 to your list (yes my flame proof coat has been put on.)
3) Remember what is truly important in life (and if you can't think of
anything important away from your workplace, you need to get away from the
workplace.)
My humble submission to such a list.
Rick Weiss
-----Original Message-----
Sent: Monday, February 24, 2003 9:04 AM
To: Multiple recipients of list ORACLE-L
I have to admit my list is considerably smaller:
DO:
#1: Listen, Think, Learn, Communicate
#2: Have a passion for what you do. If its "just a
job", then you're in the wrong one.
DON'T:
#1: Do the opposite of the Do's
Cheers
Connor
- Rachel Carmichael <wisernet100_at_yahoo.com> wrote:
> You brought to mind another one... DON'T assume that
> changes in one
> environment will have the same impact across all
> environments so DO
> test the impact of any change in all environments
> that you can, before
> implementing it in production. We had a change go in
> to the dev
> environment that fixed the performance problem
> there. Unfortunately, it
> made performance fall through the floor in test,
> which was closer to
> the production environment in data volume.
> Fortunately it was caught
> before it went into production.
>
>
> --- Cary Millsap <cary.millsap_at_hotsos.com> wrote:
> > You guys are very kind, thank you.
> >
> > My "LIO vs PIO" thesis is this:
> >
> > 1. Too many PIOs *is* a bad thing.
> > 2. But eliminating unnecessary PIOs isn't enough.
> Even completely
> > memory-resident databases can perform horribly
> (not scale, consume
> > dozens of hours per query, etc.)
> > 3. If you begin by eliminating unnecessary LIOs
> first, then you often
> > eliminate all the PIOs you needed to eliminate, by
> side-effect.
> >
> > About the Top-10 list, I'll add...
> >
> > DON'T "do something to make the system faster"
> until you understand
> > the
> > impact that your proposed activity will have upon
> the response time
> > of
> > your important user actions. (Some proposed
> activities create
> > negligible
> > impact, and some even create negative impact. When
> you try those
> > activities that don't create sufficient *positive*
> impact, then you
> > *waste* your company's resources.)
> >
> > DO learn how to figure out--quickly, accurately,
> and
> > inexpensively--the
> > impact of a proposed activity upon end-user
> response time.
> >
> >
> > Cary Millsap
> > Hotsos Enterprises, Ltd.
> > http://www.hotsos.com
> >
> > Upcoming events:
> > - RMOUG Training Days 2003, Mar 5-6 Denver
> > - Hotsos Clinic 101, Mar 25-27 London
> >
> >
> > -----Original Message-----
> > Landrum
> > Sent: Sunday, February 23, 2003 5:49 PM
> > To: Multiple recipients of list ORACLE-L
> >
> > Yes, regarding these 3, how can they be considered
> absolute do's or
> > don'ts?
> > I didn't take Cary's material to mean ignore
> physical IO's but rather
> > to
> > show the importance and impact of logical IO's.
> Too many PIOs could
> > still be an issue.
> > (I would say maybe Cary could speak to this, but
> I'd rather him spend
> > that time on his book, which I'll be ordering as
> soon as it's
> > available.)
> > The others have their places as well. I wouldn't
> practice or preach
> > that bind variables are always, always the right
> way (usually, but
> > not
> > always).
> > Why not ASSM? Surely, there could be
> circumstances where ASSM is a
> > good
> > way, or at least ok.
> > Do Use Bind Variables
> > Do tune to Reduce Logical IO's Not Physical IO's.
> > Don't Use ASSM
> >
> > Please consider, Robert, that I'm not challenging
> your list as these
> > may
> > be very good rules to live by. I don't usually
> take any 'rule' as
> > hard
> > and fast until I can test it, but there may be
> others reading the
> > list
> > that would benefit greatly to understand why these
> things should or
> > should not be done.
> > Thanks for your input, it helps us all learn.
> >
> > Darrell Landrum
> >
> >
> >
> > >>> FREEMANR_at_tusc.com 02/23/03 04:23PM >>>
> > Here is the list of top 10 do's and don't that I
> came up with.
> >
> > #1 - Do Maintain your Expertise
> > #2 - Do Use the DBMS_STATS Package to Collect
> Statistics
> > #3 - Do Use Bind Variables
> > #4 - Do Put your Production Database in ARCHIVELOG
> Mode
> > #5 - Do Use Locally Managed Tablespaces
> > #6 - Do Monitor Your Database
> > #7 - Do Practice Recoveries
> > #8 - Do Get Involved with User Groups and Other
> Resources
> > #9 - Do Establish Standards and Change Control
> Processes
> > #10 - Do Think Ahead
> >
> > Bonus! - Do tune to Reduce Logical IO's Not
> Physical IO's.
> > (With regards to Cary!)
> >
> > Oracle Database Top 10 Don'ts
> > #1 - Don't Waste Time Re-Organizing Your Databases
> > #2 - Don't Use .Log or Other Common Extensions For
> Your Database File
> > Names
> > #3 - Don't Leave Your Database Open To Attack
> > #4 - Don't Decide Against Hot Backups
> > #5 - Don't Use ASSM
> > #6 - Don't Forget the 80/20 Rule
> > #7 - Don't Stack Views
> > #8 - Don't Be a Normalization Bigot
> > #9 - Don't Forget to Document Everything
> > #10 - Do Not Use Products You are Not Licensed
> For.
> >
> > Bonus!! - Do Not Assume A Good or Bad Hit Ratio
> Means Anything
> >
> > Ok, anyone wanna comment?
> >
> >
> > Robert G. Freeman
> > Technical Management Consultant
> > TUSC - The Oracle Experts www.tusc.com
> > 904.708.5076 Cell (It's everywhere that I am!)
> > Author of several books you can find on
> Amazon.com!
> >
> > --
> > Please see the official ORACLE-L FAQ:
> http://www.orafaq.net
> > --
> > Author: Freeman Robert - IL
> > INET: FREEMANR_at_tusc.com
> >
> > Fat City Network Services -- 858-538-5051
> http://www.fatcity.com
> > San Diego, California -- Mailing list and
> web hosting services
> >
>
> > To REMOVE yourself from this mailing list, send an
> E-Mail message
> > to: ListGuru_at_fatcity.com (note EXACT spelling of
> 'ListGuru') and in
> > the message BODY, include a line containing: UNSUB
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> > (or the name of mailing list you want to be
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> >
> > --
> > Please see the official ORACLE-L FAQ:
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> > --
> > Author: Darrell Landrum
> > INET: dlandrum_at_zalecorp.com
> >
> > Fat City Network Services -- 858-538-5051
> http://www.fatcity.com
> > San Diego, California -- Mailing list and
> web hosting services
> >
>
> > To REMOVE yourself from this mailing list, send an
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> > to: ListGuru_at_fatcity.com (note EXACT spelling of
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> > the message BODY, include a line containing: UNSUB
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> > --
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> > INET: cary.millsap_at_hotsos.com
> >
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>
> > To REMOVE yourself from this mailing list, send an
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>
> __________________________________________________
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> --
> Please see the official ORACLE-L FAQ:
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> INET: wisernet100_at_yahoo.com
>
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Received on Mon Feb 24 2003 - 13:24:12 CST
