RE: Usage of Temporary Table?

  • From: "VIVEK_SHARMA" <VIVEK_SHARMA@xxxxxxxxxxx>
  • To: "rjamya" <rjamya@xxxxxxxxx>
  • Date: Fri, 15 Sep 2006 21:34:04 +0530

Thanks Raj for the Global Temporary Tables' Advice.



Only 3 Tables hold the login info. Each Table has only 1 or 2 indexes.

These are small Tables with a few rows being inserted / updated into
each table per user login



Database will be a RAC Setup.



Approx a Total of 30,000 Concurrent users will login to do a set of OLTP
Transactions for an upcoming Benchmark.



If you could clarify what sys_context & VPD meant?

Any Docs, Links?



Regards



________________________________

From: rjamya [mailto:rjamya@xxxxxxxxx]
Sent: Friday, September 15, 2006 5:18 PM
To: VIVEK_SHARMA
Cc: oracle-l@xxxxxxxxxxxxx
Subject: Re: Usage of Temporary Table?



you can use GTTs, they can be made session specific. However, you might
pay a performance penalty if you over index them and if this is RAC,
never ever try to truncate them. They will do all you want. GTTs are a
good thing when used in moderation.

OTOH, if the data is small (i.e. few rows) have you considered using
sys_context? Tom (of askTom fame) has a bunch of examples of using
sys_context especially when he shows VPD.

Raj




From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of VIVEK_SHARMA
Sent: Friday, September 15, 2006 1:11 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Usage of Temporary Table?



Folks



On login by a User into our Hybrid Banking Application certain session
information e.g. role of user, operational authority of user etc is
INSERTED into a few Tables which needs to be preserved only till the
life of the respective user login session i.e. till the User logs OUT.



Additionally on a Database re-start we would prefer the respective
tables to get automatically Truncated/Flushed but with the Table
Structure & corresponding Indexes continuing to exist. We would prefer
NOT to manually create the Table Structure & respective indexes on DB
restart.



NOTE - Both Dedicated & Shared Servers Database connections are used.

Currently PERMANENT Tables are being used for the same 



Qs Can some types of Temporary tables be used instead in Oracle - 10.2?



NOTE - Redo need NOT be logged for these Tables.



Thanks indeed





**************** CAUTION - Disclaimer *****************
This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely 
for the use of the addressee(s). If you are not the intended recipient, please 
notify the sender by e-mail and delete the original message. Further, you are 
not to copy, disclose, or distribute this e-mail or its contents to any other 
person and any such actions are unlawful. This e-mail may contain viruses. 
Infosys has taken every reasonable precaution to minimize this risk, but is not 
liable for any damage you may sustain as a result of any virus in this e-mail. 
You should carry out your own virus checks before opening the e-mail or 
attachment. Infosys reserves the right to monitor and review the content of all 
messages sent to or from this e-mail address. Messages sent to or from this 
e-mail address may be stored on the Infosys e-mail system.
***INFOSYS******** End of Disclaimer ********INFOSYS***

Other related posts: