If each schema has it's own tablespace, then you can do Point In Time Tablespace
Recovery. If all schemas share tablespaces then that would be a problem.
Richard Ji
>>> [EMAIL PROTECTED] 05/23/01 02:45AM >>>
Off the top of my head I can see this problem also. Is there anyone who is expert at
recovery has a view.
Dick - how can you consolidate 8 companies into one schema - they probably all have
different inventories,equipmet etc.. + all have their own interface to Oracle
Financials.
Sam
----- Original Message -----
From: John Lewis
To: Multiple recipients of list ORACLE-L
Sent: Wednesday, May 23, 2001 3:36 AM
Subject: RE: Multiple schema's or multiple databases
Something to ponder. The archive logs are tied to the system. Thus, if you want to
recover to a point in time for a multi-schema /one instance system, if one schema gets
rolled back - everything gets rolled back.
We had this same issue. Perhaps someone knows a way around this.
-----Original Message-----
From: Christopher Spence [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, May 22, 2001 2:26 PM
To: Multiple recipients of list ORACLE-L
Subject: RE: Multiple schema's or multiple databases
1. Is that performance gain absolutely necessary?
What happens if one company goes down and takes down them all.
On another note, I tend to agree on lesser instances against more instances.
Easier to tune, better perforamance due to what I call instance wastage and much
easier to maintain. But if one system changes alot, has significiantly different
access methods, or goes up and down more than anyone, I would evaluate seperate
instances.
-----Original Message-----
From: Sam Roberts [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, May 22, 2001 1:41 PM
To: Multiple recipients of list ORACLE-L
Subject: Multiple schema's or multiple databases
Oracle 8.1.6 and Solaris
I'm going to inherit production databases when I start my new job next week. I
gather that the production database consists of 8 schema's (8 companies) that are all
in one database. Its an ERP package called Maximo and it interfaces to Financials 11i
databases (don't know if this is multiple databases or schema's yet).
Apparently there is some data passing between companies and multiple schema's
perform better than using database links with multiple databases, and this is the
reason for multiple schema's.
Does anyone have an opinion on this. If I'd have done it I would have done
multiple databases as they are separate companies, but I'm open to comments as not
quite got my head round it yet, plus I've been vacationing (partying) for 3 weeks.
Thanx
Sam
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