Re: Multiple schema's or multiple databases

[Sam Roberts]

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