"she" -- nah, this database belongs to the new DBA we hired.... he'll have
to figure it out -- with help from his friends I am sure :)
>From: Jeffery Stevenson <jeff_at_mpv.com>
>Reply-To: ORACLE-L_at_fatcity.com
>To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
>Subject: RE: Re[2]: Re[2]:Upgrading Oracle
>Date: Wed, 25 Oct 2000 08:35:27 -0800
>
>Sounds like the tables will be having too many updates/inserts to make
>bitmap indexes feasible. She could possibly split the table up and then
>create a view to map it back to the way the application expects to see it
>(even using INSTEAD-OF triggers to map inserts and updates properly).
>Well,
>she'll figure something out. :)
>
>Jeff
>
>-----Original Message-----
>Sent: Wednesday, October 25, 2000 10:20 AM
>To: Multiple recipients of list ORACLE-L
>
>
>Rachael,
>
> Why can't you create indexes on these columns?
>(offhand they sound like candidates for bitmapped
>indexes)
>
>Matt
>
>----
>R. Matt Adams - GE Appliances - matt.adams_at_appl.ge.com
> No electrons were harmed in the making of this e-mail.
>
>
>
> > -----Original Message-----
> > From: Rachel Carmichael [mailto:carmichr_at_hotmail.com]
> > Sent: Wednesday, October 25, 2000 12:06 AM
> > To: Multiple recipients of list ORACLE-L
> > Subject: Re: Re[2]: Re[2]:Upgrading Oracle
> >
> >
> >
> > oh that was minor compared to today's rant... a third party
> > product that
> > denormalizes tables because their "experts" told them that if
> > you have more
> > than 4 tables in a join performance suffers significantly.
> >
> > So instead of a parent table with a child table that contains
> > one row for
> > each option selected, I have ONE table with a column for
> > every possible
> > option, and a Y/N switch for each one. AND just to make it even more
> > interesting, if you want to add a new option, the product
> > automatically adds
> > a new column to the table. We expect to have something like
> > 5-15 million
> > rows in that table. And we will do selections for mass emails
> > based on each
> > of those columns. Which I can't index, so we will do multiple
> > full table
> > scans on a table way too large to pin into the buffer pool.
> >
> > I managed not to foam at the mouth. And made sure that
> > EVERYONE in that
> > meeting knew that I thought that this design was going to
> > cause us major
> > performance problems that I could not necessarily do DBA
> > magic to remove.
> > Sigh......
> >
> > Rachel
> >
> > >From: dgoulet_at_vicr.com
> > >To: "Rachel Carmichael" <carmichr_at_hotmail.com>,
> > Multiple recipients
> > >of list ORACLE-L <ORACLE-L_at_fatcity.com>
> > >Subject: Re[2]: Re[2]:Upgrading Oracle
> > >Date: Tue, 24 Oct 2000 18:35:20 -0400
> > >
> > >Nice to see I can still get a rise out of you. Cheers!!
> > >
> > >Dick Goulet
> >
> > ______________________________________________________________
> > ___________
> > Get Your Private, Free E-mail from MSN Hotmail at
>http://www.hotmail.com.
>
>Share information about yourself, create your own public profile at
>http://profiles.msn.com.
>
>--
>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>--
>Author: Rachel Carmichael
> INET: carmichr_at_hotmail.com
>
>Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
>San Diego, California -- Public Internet access / Mailing Lists
>--------------------------------------------------------------------
>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 ORACLE-L
>(or the name of mailing list you want to be removed from). You may
>also send the HELP command for other information (like subscribing).
>--
>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>--
>Author: Adams, Matthew (GEA, 088130)
> INET: MATT.ADAMS_at_APPL.GE.COM
>
>Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
>San Diego, California -- Public Internet access / Mailing Lists
>--------------------------------------------------------------------
>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 ORACLE-L
>(or the name of mailing list you want to be removed from). You may
>also send the HELP command for other information (like subscribing).
>--
>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>--
>Author: Jeffery Stevenson
> INET: jeff_at_mpv.com
>
>Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
>San Diego, California -- Public Internet access / Mailing Lists
>--------------------------------------------------------------------
>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 ORACLE-L
>(or the name of mailing list you want to be removed from). You may
>also send the HELP command for other information (like subscribing).
Get Your Private, Free E-mail from MSN Hotmail at
http://www.hotmail.com.
Received on Wed Oct 25 2000 - 15:23:17 CDT
