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	<title>Square DBA - Oracle DBA Talk &#187; DBA Thoughts</title>
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		<title>Compressing Partitioned Tables</title>
		<link>http://www.squaredba.com/compressing-partitioned-tables-193.html</link>
		<comments>http://www.squaredba.com/compressing-partitioned-tables-193.html#comments</comments>
		<pubDate>Mon, 08 Mar 2010 14:08:48 +0000</pubDate>
		<dc:creator>Matt</dc:creator>
				<category><![CDATA[DBA Thoughts]]></category>
		<category><![CDATA[Oracle How-To]]></category>

		<guid isPermaLink="false">http://www.squaredba.com/?p=193</guid>
		<description><![CDATA[I recently wrote a script to compress certain partitions in a table. Basically any partition that was loaded and analyzed I wanted to move to a new tablespace and compress the data. The script basically spools out the SQL into a file and then runs that file. Here is the code specifically related to the [...]]]></description>
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		<title>Oracle RAC Project Starts Tomorrow</title>
		<link>http://www.squaredba.com/oracle-rac-project-starts-tomorrow-181.html</link>
		<comments>http://www.squaredba.com/oracle-rac-project-starts-tomorrow-181.html#comments</comments>
		<pubDate>Mon, 11 Jan 2010 21:35:28 +0000</pubDate>
		<dc:creator>Matt</dc:creator>
				<category><![CDATA[DBA Thoughts]]></category>
		<category><![CDATA[Site News]]></category>
		<category><![CDATA[11G]]></category>
		<category><![CDATA[3PAR]]></category>
		<category><![CDATA[RAC]]></category>
		<category><![CDATA[SAN]]></category>

		<guid isPermaLink="false">http://www.squaredba.com/?p=181</guid>
		<description><![CDATA[A I previously described I will started a new Oracle RAC project. If everything goes as planned I will get my hands on the 2 node setup tomorrow. I have been busy researching 3PAR and enhancements to 11G. I will be installing 11G and implementing all new data warehouse ETL code.]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Oracle Storage Research</title>
		<link>http://www.squaredba.com/oracle-storage-research-167.html</link>
		<comments>http://www.squaredba.com/oracle-storage-research-167.html#comments</comments>
		<pubDate>Fri, 11 Dec 2009 21:19:21 +0000</pubDate>
		<dc:creator>Matt</dc:creator>
				<category><![CDATA[DBA Thoughts]]></category>
		<category><![CDATA[3PAR]]></category>
		<category><![CDATA[Oracle Storage]]></category>
		<category><![CDATA[thin provisioning]]></category>

		<guid isPermaLink="false">http://www.squaredba.com/?p=167</guid>
		<description><![CDATA[I have been heavily researching Oracle storage best practices since starting my new Oracle RAC project.   My new setup will specifically be for replacing a data warehouse that is currently 4.8T.  The new data warehouse will start out significantly smaller.  An entirely new ETL process will be deployed an then the historical data will be move over to it. The new setup will be [...]]]></description>
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		<slash:comments>6</slash:comments>
		</item>
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		<title>Oracle RAC Project</title>
		<link>http://www.squaredba.com/oracle-rac-project-163.html</link>
		<comments>http://www.squaredba.com/oracle-rac-project-163.html#comments</comments>
		<pubDate>Tue, 08 Dec 2009 20:05:09 +0000</pubDate>
		<dc:creator>Matt</dc:creator>
				<category><![CDATA[DBA Thoughts]]></category>
		<category><![CDATA[3PAR]]></category>
		<category><![CDATA[F400]]></category>

		<guid isPermaLink="false">http://www.squaredba.com/?p=163</guid>
		<description><![CDATA[I will be starting a new project where I will be using Oracle RAC 11G. The setup will be a two node RAC setup running on 3PAR&#8217;s F400 I will try to document as much as I can here on Square DBA, so stay tuned  . . . .]]></description>
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		<slash:comments>2</slash:comments>
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		<title>SQL Worksheet gone in 11g client</title>
		<link>http://www.squaredba.com/sql-worksheet-gone-in-11g-client-156.html</link>
		<comments>http://www.squaredba.com/sql-worksheet-gone-in-11g-client-156.html#comments</comments>
		<pubDate>Tue, 13 Oct 2009 18:48:23 +0000</pubDate>
		<dc:creator>Matt</dc:creator>
				<category><![CDATA[DBA Thoughts]]></category>
		<category><![CDATA[Enterprise Manager]]></category>
		<category><![CDATA[grid control]]></category>
		<category><![CDATA[SQL Developer]]></category>
		<category><![CDATA[SQL Worksheet]]></category>

		<guid isPermaLink="false">http://www.squaredba.com/?p=156</guid>
		<description><![CDATA[I just reinstalled my PC and installed a clean OS. I do this every once in a while. I find just formatting and starting over is better that trying to clean the machine up. My last load consisted of the Oracle 10g client which came with SQL Worksheet. I like SQL Worksheet because it&#8217;s not [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Redo vs. Rollback vs. Undo</title>
		<link>http://www.squaredba.com/redo-vs-rollback-vs-undo-131.html</link>
		<comments>http://www.squaredba.com/redo-vs-rollback-vs-undo-131.html#comments</comments>
		<pubDate>Thu, 02 Jul 2009 15:14:26 +0000</pubDate>
		<dc:creator>Matt</dc:creator>
				<category><![CDATA[DBA Thoughts]]></category>
		<category><![CDATA[redo]]></category>
		<category><![CDATA[Rollback]]></category>
		<category><![CDATA[rollback segments]]></category>
		<category><![CDATA[undo]]></category>

		<guid isPermaLink="false">http://www.squaredba.com/?p=131</guid>
		<description><![CDATA[I find there is always some confusion when talking about Redo, Rollback and Undo. They all sound like pretty much the same thing or at least pretty close. Redo = Every Oracle database has a set of (two or more) redo log files. The redo log records all changes made to data, including both uncommitted [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Upgrade an Oracle 10g database to Oracle 11g</title>
		<link>http://www.squaredba.com/upgrade-an-oracle-10g-database-to-oracle-11g-100.html</link>
		<comments>http://www.squaredba.com/upgrade-an-oracle-10g-database-to-oracle-11g-100.html#comments</comments>
		<pubDate>Mon, 23 Mar 2009 19:51:56 +0000</pubDate>
		<dc:creator>Matt</dc:creator>
				<category><![CDATA[DBA Thoughts]]></category>
		<category><![CDATA[Site News]]></category>
		<category><![CDATA[10g]]></category>
		<category><![CDATA[11G]]></category>
		<category><![CDATA[RMAN]]></category>
		<category><![CDATA[upgrade]]></category>

		<guid isPermaLink="false">http://www.squaredba.com/?p=100</guid>
		<description><![CDATA[Most of my databases are Oracle 10G instances. I have one instance that is Oracle 11G, but that was a fresh install. I have a test 10G database with some old production data in it. I am going to up upgrade it to 11G and I will post my experience. After the upgrade I will [...]]]></description>
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		<slash:comments>1</slash:comments>
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		<title>ORA-01555 Snapshot too old</title>
		<link>http://www.squaredba.com/ora-01555-snapshot-too-old-rollback-has-been-overwritten-96.html</link>
		<comments>http://www.squaredba.com/ora-01555-snapshot-too-old-rollback-has-been-overwritten-96.html#comments</comments>
		<pubDate>Mon, 16 Mar 2009 19:46:30 +0000</pubDate>
		<dc:creator>Matt</dc:creator>
				<category><![CDATA[DBA Thoughts]]></category>
		<category><![CDATA[Oracle Tip]]></category>
		<category><![CDATA[Rollback]]></category>
		<category><![CDATA[undo]]></category>

		<guid isPermaLink="false">http://www.squaredba.com/?p=96</guid>
		<description><![CDATA[Do you ever see the Oracle error &#8220;ORA-01555 Snapshot too old (Rollback has been overwritten)&#8221;? It is a pretty common error, but one I don&#8217;t see much anymore. ORA-01555 error means the rollback segment that your long running query needed has been overwritten. Today I was helping out a friend who has been getting this [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<item>
		<title>Oracle DBA Interview Questions</title>
		<link>http://www.squaredba.com/oracle-dba-interview-questions-75.html</link>
		<comments>http://www.squaredba.com/oracle-dba-interview-questions-75.html#comments</comments>
		<pubDate>Tue, 10 Feb 2009 23:21:32 +0000</pubDate>
		<dc:creator>Matt</dc:creator>
				<category><![CDATA[DBA Thoughts]]></category>
		<category><![CDATA[DBA]]></category>
		<category><![CDATA[Interview]]></category>

		<guid isPermaLink="false">http://www.squaredba.com/?p=75</guid>
		<description><![CDATA[I had a friend ask me for some very basic Oracle DBA interview questions. I thought I would share. 1. Explain database instance ? A database instance (server) is a set of memory structures and background processes that access a set of database files.  The memory structures are used to store most queried data from [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Difference between Active Dataguard and Logical Standby</title>
		<link>http://www.squaredba.com/difference-between-active-dataguard-and-logical-standby-68.html</link>
		<comments>http://www.squaredba.com/difference-between-active-dataguard-and-logical-standby-68.html#comments</comments>
		<pubDate>Thu, 05 Feb 2009 21:16:07 +0000</pubDate>
		<dc:creator>Matt</dc:creator>
				<category><![CDATA[DBA Thoughts]]></category>
		<category><![CDATA[10g dataguard]]></category>
		<category><![CDATA[Active Dataguard]]></category>
		<category><![CDATA[Logical Standby]]></category>

		<guid isPermaLink="false">http://www.squaredba.com/?p=68</guid>
		<description><![CDATA[What is the difference between Active Dataguard, and the Logical Standby implementation of 10g dataguard? Active dataguard is mostly about the physical standby. Use physical standby for testing without compromising protection of the production system. You can open the physical standby read/write &#8211; do some destructive things in it (drop tables, change data, whatever &#8211; [...]]]></description>
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		<slash:comments>1</slash:comments>
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