RE: RAC 10G for different companies with one shared database and label security

Joop,

        Why not different schema's instead of combining them.  Would
make the day they decide to move on a lot easier.  It's also a lot
easier to explain too, especially to auditors.


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Kanbay
Dick Goulet, Senior Oracle DBA 
45 Bartlett ST | Marlborough, MA 01752 USA
Tel: 508.573.1978 | Fax: 508.229.2019 | Cell: 508.742.5795
rgoulet@xxxxxxxxxx
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-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Joop Gijsbers
Sent: Thursday, May 03, 2007 1:31 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: RAC 10G for different companies with one shared database and
label security

hi all,

My company is asked to make a proposal for an ERP application for
several small business companies who uses this application.

the situation now is that those companies each have a single database
(9.2.0.8) on the same node.

In the new situation it will be be 1 or 2 10G release 2 RAC Clusters
with each one " shared" database. Oracle Label security must assure that
on row level the different companies can not use each other's data.

I am examining three questions:

- is Oracle Label Security an absolute, garantueed, method that
different companies using the same database/schema, not can see each
others data? My company has as far as i know no experience met Label
Security, so therefore is ask here for experiences;

- is there any argument for two clusters above one clusters with 2/3/4/n
instances?; i don't see them, concerning avalaibility, scalablity, or
other, but maybe i overlook something;

- can i use the the "services" concept in 10G RAC to  force a bit of a
flexible way of loadbalancing (company A and B uses instance 1, coampany
C and D uses instance 2, company Eand F uses instance 3, etc.. and
flexible, that i can change that when company C uses more resources at
moment x...

Thanks,

Joop Gijsbers
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