[EMAIL PROTECTED] wrote:

both of the two database are live but use for two different web app.
my company don't want to spend more to buy a new server, so then I think of
to implement both under the same server and one instance..

Just as an anecdote, I am running 30 databases on a single instance and it's working quite well. There may be reasons to run multiple instances but it seems like tuning them to cooperate for memory would pose some problems - e.g. effective_cache_size.

-Dan


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