Multiple primary server and one stand by server

Friends,
Can we have multiple primary servers and one stand by server.
That is to say ,\
can we have a system where there are primary servers at different locations and one stand by server
in another location, so that all the changes that are happenign in all teh preimary servers can be seen
and queried in stand by server.[logical]
Assuming the prinmary servers have the same database structure.

can we have a system where there are primary servers at different locations For one primary server there will be one standby server.
stand by server in another location, so that all the changes that are happenign in all teh preimary servers can be seen and queried in stand by server.[logical].You can have a standby server in a remote location and use it for reporting purpose, but you should put ur standby db in readonly mode till 10g. In 11g I think you can put ur standby database in managed recovery mode and still you can use it for reporting purpose.
Satya.

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Edited by: ImaneA on Jan 18, 2011 9:29 AM

@Yordan :
First of all, thanks a lot for you answer.
At the end, I didn't use two EJB Projects :
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