Re: RE: Using dimensions

i think there are examplse in the datawarehouse doc on otn.

there is an oracle datawarehouse book that has come recommended(havent read it). tim gorman wrote that one right? Id bet its in there too.

you use dimensions with star schema's right?
>
> From: "Jamadagni, Rajendra" <Rajendra.Jamadagni_at_ESPN.COM>
> Date: 2003/09/29 Mon PM 12:14:39 EDT
> To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> Subject: RE: Using dimensions
>
> Thanks Scott, okay lets forget OLTP .. but I haven't seen any _actual_ uses
> of dimensions ... where does one use them? in SQLs?
>
> I have scanned TFM, but haven't STFW'd yet ... scared of too many hits.
>
> Thanks
> Raj
> ----------------------------------------------------------------------------
> ----
> Rajendra dot Jamadagni at nospamespn dot com
> All Views expressed in this email are strictly personal.
> QOTD: Any clod can have facts, having an opinion is an art !
>
> -----Original Message-----
> Sent: Monday, September 29, 2003 11:55 AM
> To: Multiple recipients of list ORACLE-L
>
>
>
> Dimensions are data warehouse constructs. They are implemented as tables in
> the database, but have the characteristic of a hierarchy that can be
> traversed. For example: a time dimension can have the hierarchy of date,
> day, week, month, quarter, year, decade, century. This is used for rollup
> reporting within the data mart. I don't see any good use of it in an OLTP
> environment, but I may be wrong.
>
>
>
> Scott Canaan (srcdco_at_rit.edu)
>
> (585) 475-7886
>
> "Life is like a sewer, what you get out of it depends on what you put into
> it." - Tom Lehrer.
>
>
>
> -----Original Message-----
> Sent: Monday, September 29, 2003 10:55 AM
> To: Multiple recipients of list ORACLE-L
>
>
>
> I have tried, but haven't found a good example of how to _use_ a dimension
> in 9ir2. I defined one, but then sat clueless on what to do with it. Is it
> any good in an OLTP environment? (I smell the answer is a NO, but still) ...
>
> Any notes from your experience?
>
> TIA
> Raj
> ----------------------------------------------------------------------------
> ----
> Rajendra dot Jamadagni at nospamespn dot com
> All Views expressed in this email are strictly personal.
> QOTD: Any clod can have facts, having an opinion is an art !
>
>
>

-----Original Message-----
From: Scott Canaan [mailto:srcdco@rit.edu]
Sent: Monday, September 29, 2003 11:55 AM
To: Multiple recipients of list ORACLE-L
Subject: RE: Using dimensions

Dimensions are data warehouse constructs.  They are implemented as tables in the database, but have the characteristic of a hierarchy that can be traversed.  For example:  a time dimension can have the hierarchy of date, day, week, month, quarter, year, decade, century.  This is used for rollup reporting within the data mart.  I don't see any good use of it in an OLTP environment, but I may be wrong.

 

Scott Canaan (srcdco@rit.edu)

(585) 475-7886

"Life is like a sewer, what you get out of it depends on what you put into it." - Tom Lehrer.

 

-----Original Message-----
From: Jamadagni, Rajendra [mailto:Rajendra.Jamadagni@espn.com]
Sent: Monday, September 29, 2003 10:55 AM
To: Multiple recipients of list ORACLE-L
Subject: Using dimensions

 

I have tried, but haven't found a good example of how to _use_ a dimension in 9ir2. I defined one, but then sat clueless on what to do with it. Is it any good in an OLTP environment? (I smell the answer is a NO, but still) ...

Any notes from your experience?

TIA
Raj
--------------------------------------------------------------------------------
Rajendra dot Jamadagni at nospamespn dot com
All Views expressed in this email are strictly personal.
QOTD: Any clod can have facts, having an opinion is an art !

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: <rgaffuri_at_cox.net
  INET: rgaffuri_at_cox.net

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 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).