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Re: MetaLink article on GLOBAL_NAMES

From: DA Morgan <damorgan_at_psoug.org>
Date: Fri, 08 Dec 2006 08:27:27 -0800
Message-ID: <1165595234.625399@bubbleator.drizzle.com>


sybrandb wrote:

> 
> On Dec 8, 3:41 pm, "EdStevens" <quetico_..._at_yahoo.com> wrote:

>> Oracle 10.2
>>
>> Doing a little reading on the fine points of GLOBAL_NAMES.
>>
>> We typically have the init parm DB_DOMAIN not set, and GLOBAL_NAMES =
>> FALSE. I notice when we create a db_link, we get the given link name
>> appended with REGRESS.RDBMS.DEV.US.ORACLE.COM, so I went looking for
>> where that particular value comes from. Found MetaLink note 395896.1
>>
>> Now it gets really interesting -- not where the assigned domain name
>> came from, but the MetaLink note itself. The subject is "What
>> Determines the Suffix used when Creating a DBlink". I don't want to
>> risk violating my usage agreement by quoting too heavily, but it states
>> that the "goal" of the article is "to explain why does the database
>> link have a suffix like REGRESS.RDBMS.DEV.US.ORACLE.COM"
>>
>> But then it doesn't. It just goes straight to the "Solution" section,
>> explaining how to change the value after the fact. Solution? I didn't
>> know there was a problem. I just wanted to find out the "why" of a bit
>> of arcane information in the bowels of the database.
>>
>> So, since the MetaLink article doesn't really "explain why does the
>> database link have a suffix like REGRESS.RDBMS.DEV.US.ORACLE.COM", can
>> someone else? I'm not looking for why db_links and global names might
>> have a suffix. I'm curious about why Oracle would force one (and that
>> value in particular) in the absence of a DBA supplied value.
>>
>> OK, it's a slow day here, and I'm at a dead-end waiting for Unix Admin
>> and Storage Admin what to do now that they've built me two database
>> servers without any disk space for the database.
> 
> 
> Just submitted the following feedback to Metalink:
> 
> This document is very misleading.
> What it does fail to explain is the global_name is made up of the
> db_name and the db_domain, and the first element (before the first . )
> in a global_name is treated as the 'db_name' and the rest of the
> global_name is treated as the 'db_domain'
> 
> The db_domain is automatically appended to any database link. *This* is
> what the document should have explained!

I have forwarded your comment directly to the person responsible for the docs.

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu
(replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org
Received on Fri Dec 08 2006 - 10:27:27 CST

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