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Re: instance and database

From: Arup Nanda <arupnanda_at_hotmail.com>
Date: Sat, 30 Nov 2002 20:48:57 -0800
Message-ID: <F001.0050F80F.20021130204857@fatcity.com>


John,

You are welcome. I am glad Icould be of help.

Arup Nanda
www.proligence.com

>From: john <john_g123_9_at_yahoo.com>
>Reply-To: ORACLE-L_at_fatcity.com
>To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
>Subject: Re: instance and database
>Date: Sat, 30 Nov 2002 13:58:43 -0800
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>thanks Scott, Jeff, Richard for this one.
>also many thanks for arup for helping out with the earlier
>db shutdown problem that i had earlier.
>
>
>
>--- Jeff Herrick <jherrick_at_igs.net> wrote:
> >
> > 1) Identify the database you wish to start using an environment
> > variable (good old DOS)
> >
> > c:\> set ORACLE_SID=SID1
> > c:\> svrmgrl
> >
> > You can also use LOCAL=SID1...It will override ORACLE_SID
> > Both of these variables can also be set in the registry under
> > HKEY_LOCAL_MACHINE\Software\Oracle. LOCAL can be useful
> > to 'hide' a remote database so that you don't have to specify
> > 'connect user/passwd_at_remotedb' you can just 'connect user/pass'
> >
> > You can also set either at the System environment level using a
> > right-click on My Computer / Properties / Environment using
> > variable names LOCAL or ORACLE_SID
> >
> > It's good form to do a 'select * from V$database' after you
> > connect to make sure you are working on the right database
> > =8-0
> >
> > 2) A database can be opened by multiple instances when it's
> > configured in an OPS (Oracle Parallel Server) environment.
> > Not to sound 'flip' here but I wouldn't worry about OPS until
> > you get your mind around how a single instance works :)
> > OPS is now known as RAC - Real Application Clusters
> >
> > Cheers
> >
> > Jeff Herrick
> >
> > On Sat, 30 Nov 2002, john wrote:
> >
> > > Oracle 8i on NT4.0
> > >
> > > via the Oracle Database Configuration Assistant create another
> > > database.
> > > ie create another database with its instance and by default the
> > > db name and instance are same. say i proceed forward and create
> > it.
> > > so now the box would have 2 separate services...
> > > OracleService<SID1>
> > > OracleService<SID2>
> > >
> > > is that correct ?
> > > question:
> > > if yes then next if i would start the svrmgrl and do a startup
> > then
> > > which instance would be started ? is there a way to give the
> > > startup command to get only a particular instance started ?
> > >
> > > Next, the docs mention that it is possible to have two or more
> > > instance(s) associated with a given database. The above example
> > > shows two separate database, each with its one unique database.
> > > So how does one implement or have 2 instances for a given
> > database
> > > ?
> > > can someone explain the difference between the two scenarios ?
> > >
> > >
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> > > Author: john
> > > INET: john_g123_9_at_yahoo.com
> > >
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-- 
Author: Arup Nanda
  INET: arupnanda_at_hotmail.com

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Received on Sat Nov 30 2002 - 22:48:57 CST

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