Re: 10g and 11g together

  • From: Hans Forbrich <fuzzy.graybeard@xxxxxxxxx>
  • To: oracle-l@xxxxxxxxxxxxx
  • Date: Wed, 03 Oct 2012 10:06:24 -0600

It depends.

Could you describe your end objective a bit more, and perhaps describe 
your current and proposed environment (hardware/OS wise) for some more 
accurate comments?

As an overview of my thought process:

- Oracle Server s/w is installed in an ORACLE_HOME, which defines one 
version of s/w and it's patches
- Multiple ORACLE_HOMEs are allowed on a server, therefore multiple 
versions of Oracle s/w are permitted (and may be run concurrently)
- One instance is basically the s/w running from one ORACLE_HOME, 
interworking with one SGA
- One ORACLE_HOME "controls" one or more Oracle Database, each with it's 
own instance
   - exception: RAC, multiple instances from multiple ORACLE_HOMEs 
control one database.
- The version upgrade process generally encourages two ORACLE_HOMEs, 
with the new HOME taking over control of an existing database

Hope that helps
/Hans

On 03/10/2012 7:48 AM, Zelli, Brian wrote:
> Can I load 11g on an already existing 10g instance?  Any gotchas?
> ciao,
> Brian
>
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