Re: How can I query the SID name from the database

Concerning the SID, which I tend to find synonymous with instance name (trying hard to figure out a way to have an instance name different from the SID, but cannot come out with anything), 8i contains a column NAME in V$INSTANCE (which has nothing in common but the name with the Oracle7 V$INSTANCE). With Oracle 7, you can't get it, for the reason that Jared says - OS stuff, not Oracle stuff. The closer you can get to it is SELECT VALUE FROM V$PARAMETER WHERE NAME = 'db_name' assuming, somewhat optimistically, that people usually give the same name to their database as to the instance when there is no parallel server running (this is what I usually do but I have very recently met databases which were created with different conventions). I have noticed, though, with 7.3 a V$ACTIVE_INSTANCE view with a NAME column which only seems to contain something when the parallel server is running (was not my case). That said, you need to relate a name to an instance # and I have not the slightest clue about how to get your instance # in this case since userenv('INSTANCE') only works with Oracle8.  

Jared Still wrote:
>
> machine_name is found in v$session.
>
> You can't query the server for the SID, as it is
> simply an environment variable.
>
> Jared
>
> On Monday 28 May 2001 10:10, Szecsy Tamas wrote:
> > Hi,
> >
> > can I query a database's server's maschine name and SID (not database
> > name!!!!) through SQL*Plus?
> >
> > TIA,
> >
> > Tamas Szecsy
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