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	<title>Usn's IT Blog</title>
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	<link>http://www.usn-it.de</link>
	<description>Martin Klier - Linux, Oracle, Asterisk</description>
	<lastBuildDate>Wed, 10 Mar 2010 00:00:08 +0000</lastBuildDate>
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		<title>Lecture about Database Technology Basics at Augustinus Gymnasium Weiden</title>
		<link>http://www.usn-it.de/index.php/2010/03/10/lecture-about-database-technology-basics-at-augustinus-gymnasium-weiden/</link>
		<comments>http://www.usn-it.de/index.php/2010/03/10/lecture-about-database-technology-basics-at-augustinus-gymnasium-weiden/#comments</comments>
		<pubDate>Wed, 10 Mar 2010 00:00:08 +0000</pubDate>
		<dc:creator>usn</dc:creator>
				<category><![CDATA[Lectures]]></category>
		<category><![CDATA[Oracle]]></category>
		<category><![CDATA[Database general]]></category>
		<category><![CDATA[lecture]]></category>
		<category><![CDATA[Talk]]></category>

		<guid isPermaLink="false">http://www.usn-it.de/?p=399</guid>
		<description><![CDATA[This year, I will talk again about basics of DB technology for 9th grade of AGW (Augustinus Gymnasium Weiden, a secondary school) again. The same event has been a success in the last years, and it&#8217;s simply nice there.
Nice? Please allow me a word about this school. They have an engaged teacher, Klaus Märker, who [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Oracle: How to create a good execution plan</title>
		<link>http://www.usn-it.de/index.php/2010/03/08/oracle-how-to-create-a-good-execution-plan/</link>
		<comments>http://www.usn-it.de/index.php/2010/03/08/oracle-how-to-create-a-good-execution-plan/#comments</comments>
		<pubDate>Mon, 08 Mar 2010 16:01:51 +0000</pubDate>
		<dc:creator>usn</dc:creator>
				<category><![CDATA[Oracle]]></category>
		<category><![CDATA[10g]]></category>
		<category><![CDATA[11g]]></category>
		<category><![CDATA[cost based optimizer]]></category>
		<category><![CDATA[Execution Plan]]></category>
		<category><![CDATA[performance]]></category>

		<guid isPermaLink="false">http://www.usn-it.de/?p=380</guid>
		<description><![CDATA[Sometimes you simple need to know whether a statement is fast or not, or why it is slow. (Sadly, it seems like virtually nobody wants to know why a statement is fast, but that&#8217;s another story&#8230;)
Do not use EXPLAIN PLAN in such cases, it does not (can not) deal bind variables right. I&#8217;ve got  a [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Oracle 11g Adaptive Cursor Sharing does not work with PL/SQL?</title>
		<link>http://www.usn-it.de/index.php/2010/03/08/oracle-11g-adaptive-cursor-sharing-does-not-work-with-plsql/</link>
		<comments>http://www.usn-it.de/index.php/2010/03/08/oracle-11g-adaptive-cursor-sharing-does-not-work-with-plsql/#comments</comments>
		<pubDate>Mon, 08 Mar 2010 09:10:40 +0000</pubDate>
		<dc:creator>usn</dc:creator>
				<category><![CDATA[Oracle]]></category>
		<category><![CDATA[11g]]></category>
		<category><![CDATA[adaptive cursor sharing]]></category>
		<category><![CDATA[bug]]></category>

		<guid isPermaLink="false">http://www.usn-it.de/?p=378</guid>
		<description><![CDATA[Recently, there was trouble in the air. I migrated a database into 11g to enjoy adaptive cursor sharing, but it did not adapt cursors. In the trouble shooting process, I discovered the following:
Bug 8357294: ADAPTIVE CURSOR SHARING DOESN&#8217;T WORK FOR SQL FROM PL/SQL
Nice one. A short quotation from the bug text:
PL/SQL has famously enjoyed the [...]]]></description>
		<wfw:commentRss>http://www.usn-it.de/index.php/2010/03/08/oracle-11g-adaptive-cursor-sharing-does-not-work-with-plsql/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Talk about Database Technology Basics at Berufsschule Wiesau</title>
		<link>http://www.usn-it.de/index.php/2010/02/22/talk-about-database-technology-basics-at-berufsschule-wiesau/</link>
		<comments>http://www.usn-it.de/index.php/2010/02/22/talk-about-database-technology-basics-at-berufsschule-wiesau/#comments</comments>
		<pubDate>Mon, 22 Feb 2010 00:17:22 +0000</pubDate>
		<dc:creator>usn</dc:creator>
				<category><![CDATA[Lectures]]></category>
		<category><![CDATA[Oracle]]></category>
		<category><![CDATA[Berufsschule Wiesau]]></category>
		<category><![CDATA[Fachinformatiker]]></category>
		<category><![CDATA[Talk]]></category>

		<guid isPermaLink="false">http://www.usn-it.de/?p=372</guid>
		<description><![CDATA[Once again, I will talk about an IT topic at Vocational School (Berufsschule) Wiesau. This year, it&#8217;s Basics of Database Technology (Grundlagen der Datenbanktechnik) for 11th and 12th-graders, who will become certified IT specialists for software development soon. Their certification is called &#8220;Fachinformatiker der Fachrichtung Anwendungsentwicklung&#8221; in German.
The paper for the talk is available now: [...]]]></description>
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		<slash:comments>1</slash:comments>
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		<item>
		<title>Oracle Technology Day Storage Optimisation &#8211; Impressions</title>
		<link>http://www.usn-it.de/index.php/2010/02/04/oracle-technology-day-storage-optimisation-impressions/</link>
		<comments>http://www.usn-it.de/index.php/2010/02/04/oracle-technology-day-storage-optimisation-impressions/#comments</comments>
		<pubDate>Thu, 04 Feb 2010 17:12:24 +0000</pubDate>
		<dc:creator>usn</dc:creator>
				<category><![CDATA[Community]]></category>
		<category><![CDATA[Oracle]]></category>
		<category><![CDATA[OLAP]]></category>
		<category><![CDATA[partitioning]]></category>
		<category><![CDATA[Technology Day]]></category>

		<guid isPermaLink="false">http://www.usn-it.de/?p=367</guid>
		<description><![CDATA[In January, I&#8217;ve bee rather busy, so the blog was left alone. No sense in blogging just to blog.
Now some content. I attended the Oracle Technology Day &#8211; Storage Optimisation in Bonn, Germany. It was a nice event, lots of information, a bit commercials, excellent catering. But this is a technical blog, let&#8217;s talk abut [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>The usual end-of-the-year stuff, but honestly!</title>
		<link>http://www.usn-it.de/index.php/2009/12/22/the-usual-end-of-the-year-stuff-but-honestly/</link>
		<comments>http://www.usn-it.de/index.php/2009/12/22/the-usual-end-of-the-year-stuff-but-honestly/#comments</comments>
		<pubDate>Tue, 22 Dec 2009 13:52:41 +0000</pubDate>
		<dc:creator>usn</dc:creator>
				<category><![CDATA[About this blog]]></category>
		<category><![CDATA[Community]]></category>

		<guid isPermaLink="false">http://www.usn-it.de/?p=363</guid>
		<description><![CDATA[Before everyone diappears from The Net(tm) for Christmas:
Have a nice yule-tide, don&#8217;t eat too much of the feast, don&#8217;t drink and drive, and talk the RDBMS of your choice into operating itself for at least two or three days: You won&#8217;t miss the usual 6-in-the-morning phone calls on Christmas!
If you are lucky enough to have [...]]]></description>
		<wfw:commentRss>http://www.usn-it.de/index.php/2009/12/22/the-usual-end-of-the-year-stuff-but-honestly/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Oracle 11g: Password expired, account locked &#8211; unwanted!</title>
		<link>http://www.usn-it.de/index.php/2009/12/04/oracle-11g-password-expired-account-locked-unwanted/</link>
		<comments>http://www.usn-it.de/index.php/2009/12/04/oracle-11g-password-expired-account-locked-unwanted/#comments</comments>
		<pubDate>Fri, 04 Dec 2009 16:09:43 +0000</pubDate>
		<dc:creator>usn</dc:creator>
				<category><![CDATA[Oracle]]></category>
		<category><![CDATA[11g]]></category>
		<category><![CDATA[password]]></category>
		<category><![CDATA[security]]></category>

		<guid isPermaLink="false">http://www.usn-it.de/?p=359</guid>
		<description><![CDATA[Hi,
it&#8217;s old news, but oracle 11g expires passwords after 180 days, and locks you out if you mistype your password 10 times, and most DBAs don&#8217;t like that. It&#8217;s unsecure, but for client-server-applications a locked account is no single-user-annoyance, it&#8217;s a downtime killing SLAs, nerves and &#8211; hopefully not &#8211; DBA jobs. So just make [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>DOAG Konferenz 2009: Impressions Day 3 (final)</title>
		<link>http://www.usn-it.de/index.php/2009/11/20/doag-konferenz-2009-impressions-day-3-final/</link>
		<comments>http://www.usn-it.de/index.php/2009/11/20/doag-konferenz-2009-impressions-day-3-final/#comments</comments>
		<pubDate>Fri, 20 Nov 2009 10:33:04 +0000</pubDate>
		<dc:creator>usn</dc:creator>
				<category><![CDATA[Community]]></category>
		<category><![CDATA[Oracle]]></category>
		<category><![CDATA[ASM]]></category>
		<category><![CDATA[CBO]]></category>
		<category><![CDATA[Conference]]></category>
		<category><![CDATA[DOAG]]></category>
		<category><![CDATA[Grid Infrastructure]]></category>

		<guid isPermaLink="false">http://www.usn-it.de/?p=351</guid>
		<description><![CDATA[Thursday 19th was the last day of DOAG Confernce 2009. Compared with the second day, the program was much more dense: For my (DBA) profile there have been several hours, where more that one talk would have been appropriate.
This list is, what I collected during the day.

Oracle Grid Infrastructure:

DNS is mandatory for SCAN addresses, you [...]]]></description>
		<wfw:commentRss>http://www.usn-it.de/index.php/2009/11/20/doag-konferenz-2009-impressions-day-3-final/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>DOAG Konferenz 2009: Impressions Day 2</title>
		<link>http://www.usn-it.de/index.php/2009/11/19/doag-konferenz-2009-impressions-day-2/</link>
		<comments>http://www.usn-it.de/index.php/2009/11/19/doag-konferenz-2009-impressions-day-2/#comments</comments>
		<pubDate>Thu, 19 Nov 2009 13:38:25 +0000</pubDate>
		<dc:creator>usn</dc:creator>
				<category><![CDATA[Community]]></category>
		<category><![CDATA[Oracle]]></category>
		<category><![CDATA[11gR2]]></category>
		<category><![CDATA[AS]]></category>
		<category><![CDATA[ASM]]></category>
		<category><![CDATA[Conference]]></category>
		<category><![CDATA[DOAG]]></category>
		<category><![CDATA[Execution Plan]]></category>
		<category><![CDATA[Migration]]></category>
		<category><![CDATA[VM]]></category>

		<guid isPermaLink="false">http://www.usn-it.de/?p=347</guid>
		<description><![CDATA[As promised, today my impressions of yesterday (confusing, I know). Clarification: This is about Wednesday, November 18th. I&#8217;m still at DOAG Conference 2009 in Nuremberg. Wednesday was a silent day for my interests, especially at noon there have been less talks being of interest, but maybe they have done something for my general knowledge&#8230;
So once [...]]]></description>
		<wfw:commentRss>http://www.usn-it.de/index.php/2009/11/19/doag-konferenz-2009-impressions-day-2/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>DOAG Konferenz 2009: Impressions Day 1</title>
		<link>http://www.usn-it.de/index.php/2009/11/18/doag-konferenz-2009-impressions-day-1/</link>
		<comments>http://www.usn-it.de/index.php/2009/11/18/doag-konferenz-2009-impressions-day-1/#comments</comments>
		<pubDate>Wed, 18 Nov 2009 11:50:42 +0000</pubDate>
		<dc:creator>usn</dc:creator>
				<category><![CDATA[Community]]></category>
		<category><![CDATA[Oracle]]></category>
		<category><![CDATA[ASM]]></category>
		<category><![CDATA[Conference]]></category>
		<category><![CDATA[DOAG]]></category>
		<category><![CDATA[Exadata]]></category>
		<category><![CDATA[Flashback]]></category>
		<category><![CDATA[Grid Infrastructure]]></category>
		<category><![CDATA[Index]]></category>

		<guid isPermaLink="false">http://www.usn-it.de/?p=341</guid>
		<description><![CDATA[These days, the DOAG Conference 2009 happens in Nuremberg, Germany. First day was yesterday, Tuesday November 11th 2009. This is a machine-readable copy of my scratchpad, coming from the different talks I attended.

Sun Oracle Database Machine Exadata 2: The &#8220;Quarter Rack&#8221; (consisting of 2 Servers and 3 storage nodes) sounds interesting.
11gR2 has some features only [...]]]></description>
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		<slash:comments>3</slash:comments>
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