Oracle-L: RE: Cognos

From: <Paul.Parker_at_bmwna.com>
Date: Thu, 18 Jul 2002 15:44:18 -0800
Message-ID: <F001.0049C2C5.20020718154418@fatcity.com>

Totally agree.

I didn't make the point of accessing the production OLTP system, as I didn't think that anybody is still doing that :) Any serious reporting should be off of a database setup specifically for that purpose.

Through a proper meta-data layer, the joins between dimensions and facts (we are using a proper star schema ala Kimball, right?) is hidden and automatic, thereby reducing the likelihood of "bad" queries. Obviously end-user training, an understanding of the data, plus others are all pre-requisites to letting the users loose on the database.

"If it wasn't for users, my database would run perfectly :)"

Paul

-----Original Message-----
Sent: Thursday, July 18, 2002 6:12 PM
To: ORACLE-L_at_fatcity.com
Cc: Paul.Parker_at_bmwna.com

Paul,

IMO it depends on where that data resides.

If it's in the production OLTP system, it might be their data, but they're aren't responsible for the performance of the database, I am.

So they don't get to play there.

If it's in their replicated database I've created for reporting, they can do anything they want. They might slow down other users reporting, but they won't impact manufacturing.

Depending on the architecture of the BI system, they may not even get access to the DW, but only the DM.

Is it their data? Yes.

Do they know how to manage it? No.

That's our job.

Jared

Paul.Parker_at_bmwna.com
Sent by: root_at_fatcity.com
07/18/2002 12:32 PM
Please respond to ORACLE-L

        To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
        cc: 
        Subject:        RE: Cognos

Cognos notwithstanding, isn't the objective in the case of Data Warehouse/DSS/Reporting/BI (or whatever the latest buzzword is for generating reports) to give end-users access to the data. These end-users then generate the own reports, without the need for IT every time they need
a new total on a report?

Sure I understand the need to prevent cartesian products and other queries from hell, but there are ways to achieve that. I fail to understand why the
end-users shouldn't have access to the data, it is THEIR data, after all, not the DBA's.

Paul

-----Original Message-----
Sent: Thursday, July 18, 2002 12:08 PM
To: Multiple recipients of list ORACLE-L

Anybody have any experience with "Cognos"? We've got a bhb that thinks its
the solution for giving every end user access to the raw data (groan...loudly!)... I've argued every which-a-way against the concept, now
I have to fight the specifics....

HELP! John P Weatherman
Database Administrator
Replacements Ltd.
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