Re: External table performance

From: Powell, Mark <mark.powell2_at_dxc.com>
Date: Fri, 12 Jan 2018 19:28:49 +0000
Message-ID: <DF4PR8401MB12762F5834BB6223E128A862CC170_at_DF4PR8401MB1276.NAMPRD84.PROD.OUTLOOK.COM>

Sanjay, you did not identify your Oracle version and edition nor post the actual code you have an issue with but consider the following.

I do not have access to a server where I can test right now but I believe that you can select from an external table using parallel query if you are on EE.

Mark Powell
Database Administration
(313) 592-5148

---

From: oracle-l-bounce_at_freelists.org <oracle-l-bounce_at_freelists.org> on behalf of Sanjay Mishra <dmarc-noreply_at_freelists.org> Sent: Friday, January 12, 2018 2:23:40 PM To: Oracle-L Freelists
Subject: External table performance

Can someone share the Tuning activites that can be done for Selecting data from External table in 12c (12.1)? I am working on project that is getting every 6hourly data as flat file from external source and then has to be selected from ORacle table for some processing. Data is only 50K records but Select is taking time. It is Local Storage where File is located. I don;t think we can have indexes yet and so checking experience from the experts.

Tx
Sanjay

--
http://www.freelists.org/webpage/oracle-l

Received on Fri Jan 12 2018 - 20:28:49 CET