From oracle-l-bounce@freelists.org Mon Aug 22 16:06:53 2005 Return-Path: Received: from air891.startdedicated.com (root@localhost) by orafaq.com (8.12.10/8.12.10) with ESMTP id j7ML6r3I024379 for ; Mon, 22 Aug 2005 16:06:53 -0500 X-ClientAddr: 206.53.239.180 Received: from turing.freelists.org (freelists-180.iquest.net [206.53.239.180]) by air891.startdedicated.com (8.12.10/8.12.10) with ESMTP id j7ML6oIP024361 for ; Mon, 22 Aug 2005 16:06:50 -0500 Received: from localhost (localhost [127.0.0.1]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id D7D7F1E5612; Mon, 22 Aug 2005 16:06:46 -0500 (EST) Received: from turing.freelists.org ([127.0.0.1]) by localhost (turing [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 15402-02; Mon, 22 Aug 2005 16:06:46 -0500 (EST) Received: from turing (localhost [127.0.0.1]) by turing.freelists.org (Avenir Technologies Mail Multiplex) with ESMTP id 4C31E1E55C3; Mon, 22 Aug 2005 16:06:46 -0500 (EST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=mEgLXVqHQbVMceHM15SfHiiKidUnNr+T6dHYm8vSOgl3ccBHrp5bbzwb/2BXctGBLl/0zh39FHkoTJ0O8kKHJ1SnknrpJ2n70Y3xiB7pRHKyJNSY/4QE8BfCKX4oVhH2HAaPMjB3l9G9djD7DfoA4gDjQGyrso4ptIpRqFU6aJk= Message-ID: Date: Mon, 22 Aug 2005 22:04:56 +0100 From: Jared Still To: "Mercadante, Thomas F (LABOR)" Subject: Re: ORA-1578...block corrupted...error is normal...a block...had a NOLOGGING...operation performed against Cc: cmarquez@collegeboard.org, oracle-l@freelists.org In-Reply-To: Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_748_28500962.1124744696215" References: X-archive-position: 24314 X-ecartis-version: Ecartis v1.0.0 Sender: oracle-l-bounce@freelists.org Errors-To: oracle-l-bounce@freelists.org X-original-sender: jkstill@gmail.com Precedence: normal Reply-To: jkstill@gmail.com X-list: oracle-l X-Virus-Scanned: by amavisd-new-20030616-p9 (Debian) at avenirtech.net X-mailscan-MailScanner-Information: Please contact the ISP for more information X-mailscan-MailScanner: Found to be clean X-MailScanner-From: oracle-l-bounce@freelists.org X-Spam-Level: X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on air891.startdedicated.com X-Spam-Status: No, hits=-3.2 required=5.0 tests=AWL,BAYES_00, HTML_FONTCOLOR_UNKNOWN,HTML_MESSAGE autolearn=no version=2.63 ------=_Part_748_28500962.1124744696215 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On 8/22/05, Mercadante, Thomas F (LABOR) < Thomas.Mercadante@labor.state.ny.us> wrote: >=20 > I was thinking about this whole topic over the weekend. It just affirms= =20 > my feeling that using the NOLOGGING option needs to be used judiciously. = And=20 > I question how much time we are saving here. >=20 Quite a bit of time actually. Try timing a bulk load operation with and=20 without logging. If the total time to reload using NOLOGGING and a total backup is less than= =20 > a reload with LOGGING and no backup, then don't use it. >=20 You don't need a complete database backup, just the datafiles containing th= e=20 nologging objects.=20 --=20 Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist ------=_Part_748_28500962.1124744696215 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline
On 8/22/05, Mercadante, Thomas F (LABOR) <Thomas.Mercadante@labor.state.ny.us> wrote:

I was thinking about this whole to= pic over the weekend.  It just affirms my feeling that using the NOLOGGING opti= on needs to be used judiciously.  And I question how much time we are sav= ing here.


Quite a bit of time actually.  Try timing a bulk load operation with a= nd without logging.

If the total time to reload using NOLOGGING and a total backup is less than a reload with LOGGING and no back= up, then don't use it.


You don't need a complete database backup, just the datafiles containing th= e  nologging objects.

--
Jared Still
Certifiable Oracle DBA and Part Time = Perl Evangelist

------=_Part_748_28500962.1124744696215-- -- http://www.freelists.org/webpage/oracle-l