RE: What is best practice - differenet schema/different dbs

From: Richard Ji <richard_at_letsplay.com>
Date: Tue, 27 Mar 2001 09:47:29 -0800
Message-ID: <F001.002D9236.20010327093101@fatcity.com>

Having separate databases gives you some flexibility. You can manage them separatly, for instance you can upgrade the database to a newer version in phase. Also, if you lose a database only one customer is affected. Do all the customers always use the same application (same version)? If one customer wants to use the latest version of the application (perhaps for a feature they have long been waiting for) when it become available and requires the latest version of Oracle and the rest of the customers want to stick with the old version, then you have to put them into separate databases.

On the other hand, separate databases means more database to manage.

So the answer is depends on your situtaion.

Richard

• "Rao, Maheswara" <Maheswara.Rao_at_Sungardp3.com> wrote:
  > List,
  >
  > I would like to have your opinion on the following scenario.
  >
  > We are having an application which is used by different customers
  > (around 15
  > customers). On an average each customer will have around 1,000
  > transactions
  > per 5 minutes. Now, is it better to have a separate database for each
  > customer on the same machine or to create all the customers as different
  > schema in one single database?
  >
  > What are the pros and cons. I am specifically looking at performance
  > and
  > security issues.
  >
  > Environment:
  >
  > This application is a 24x7 environment, OLTP application. Sun 6500
  > Solaris 7
  > with 4 CPUS. Raid 10. Memory 4 GB (memory can be increased if
  > required).
  > Oracle 816.
  >
  > Thanks,
  >
  > Rao
  > --
  > Please see the official ORACLE-L FAQ: http://www.orafaq.com
  > --
  > Author: Rao, Maheswara
  > INET: Maheswara.Rao_at_Sungardp3.com
  >
  > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
  > San Diego, California -- Public Internet access / Mailing Lists
  > --------------------------------------------------------------------
  > To REMOVE yourself from this mailing list, send an E-Mail message
  > to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
  > the message BODY, include a line containing: UNSUB ORACLE-L
  > (or the name of mailing list you want to be removed from). You may
  > also send the HELP command for other information (like subscribing).
  

  ---

Do You Yahoo!?
Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/?.refer=text

--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Rocky Welch
  INET: rockyw_99_at_yahoo.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Richard Ji
  INET: richard_at_letsplay.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

Received on Tue Mar 27 2001 - 11:47:29 CST