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	<title>Digital Wealth &#187; database</title>
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	<description>Hardeep's musings on Computers, Finance and Photography</description>
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		<title>Oracle: Snapshot too old?</title>
		<link>http://blog.hardeep.name/computer/20120305/oracle-snapshot-too-old/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=oracle-snapshot-too-old</link>
		<comments>http://blog.hardeep.name/computer/20120305/oracle-snapshot-too-old/#comments</comments>
		<pubDate>Mon, 05 Mar 2012 01:49:42 +0000</pubDate>
		<dc:creator>Hardeep</dc:creator>
				<category><![CDATA[Computer]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[oracle]]></category>
		<category><![CDATA[performance]]></category>
		<category><![CDATA[snapshot]]></category>
		<category><![CDATA[troubleshoot]]></category>

		<guid isPermaLink="false">http://blog.hardeep.name/?p=2182</guid>
		<description><![CDATA[Okay, so you have received the Oracle error ORA-01555 Snapshot Too Old and have no clue how to go about resolving it? This post is made for you then. (The first time an application developer has written about this rather than a DBA.) First, why does this occur? When you run a query, Oracle retains [...]<hr /><small>Copyright &#169; Hardeep Singh 2010<br /> This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 2.5 India License. http://creativecommons.org/licenses/by-nc-nd/2.5/in/ 
Original source: http://blog.hardeep.name
(Digital Fingerprint:<br /> f0469bf091e7eb559fea0d3023145aa7)</small>]]></description>
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		<title>When NOT to normalise the database</title>
		<link>http://blog.hardeep.name/computer/20090317/db-not-normalise/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=db-not-normalise</link>
		<comments>http://blog.hardeep.name/computer/20090317/db-not-normalise/#comments</comments>
		<pubDate>Tue, 17 Mar 2009 11:39:24 +0000</pubDate>
		<dc:creator>Hardeep</dc:creator>
				<category><![CDATA[Computer]]></category>
		<category><![CDATA[Programming]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[design]]></category>
		<category><![CDATA[normalise]]></category>
		<category><![CDATA[normalize]]></category>
		<category><![CDATA[oracle]]></category>
		<category><![CDATA[performance]]></category>
		<category><![CDATA[software]]></category>
		<category><![CDATA[table]]></category>

		<guid isPermaLink="false">http://blog.hardeep.name/?p=963</guid>
		<description><![CDATA[When talking of Database Normalisation, textbooks often talk of BCNF, fifth and higher normal forms. However, in practice (in large software/ERPs) I have rarely noticed normalisation beyond Third Normal form. In fact, there is a certain degree of redundancy that is desirable. While doing database design, I believe there are two critical aspects that should [...]<hr /><small>Copyright &#169; Hardeep Singh 2010<br /> This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 2.5 India License. http://creativecommons.org/licenses/by-nc-nd/2.5/in/ 
Original source: http://blog.hardeep.name
(Digital Fingerprint:<br /> f0469bf091e7eb559fea0d3023145aa7)</small>]]></description>
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		<title>Generating sequential numbers in a database</title>
		<link>http://blog.hardeep.name/computer/20090218/gen-num-sequence/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=gen-num-sequence</link>
		<comments>http://blog.hardeep.name/computer/20090218/gen-num-sequence/#comments</comments>
		<pubDate>Wed, 18 Feb 2009 03:21:19 +0000</pubDate>
		<dc:creator>Hardeep</dc:creator>
				<category><![CDATA[Computer]]></category>
		<category><![CDATA[Programming]]></category>
		<category><![CDATA[access]]></category>
		<category><![CDATA[autogenerate]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[for update]]></category>
		<category><![CDATA[index]]></category>
		<category><![CDATA[oracle]]></category>
		<category><![CDATA[select for update]]></category>
		<category><![CDATA[sequence]]></category>

		<guid isPermaLink="false">http://blog.hardeep.name/?p=851</guid>
		<description><![CDATA[You are creating an application that allows organisations to manage employees. One of the tasks that it has to do is generate an employee ID when a new employee is being entered. One way of doing this is through this query: SELECT max(empl_id)+1 FROM employee; However, this query presents a problem in a multiuser environment: [...]<hr /><small>Copyright &#169; Hardeep Singh 2010<br /> This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 2.5 India License. http://creativecommons.org/licenses/by-nc-nd/2.5/in/ 
Original source: http://blog.hardeep.name
(Digital Fingerprint:<br /> f0469bf091e7eb559fea0d3023145aa7)</small>]]></description>
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		<title>Using SQL potential</title>
		<link>http://blog.hardeep.name/computer/20080731/using-sql-potential/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=using-sql-potential</link>
		<comments>http://blog.hardeep.name/computer/20080731/using-sql-potential/#comments</comments>
		<pubDate>Thu, 31 Jul 2008 13:37:54 +0000</pubDate>
		<dc:creator>Hardeep</dc:creator>
				<category><![CDATA[Computer]]></category>
		<category><![CDATA[Programming]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[disk IO]]></category>
		<category><![CDATA[performance]]></category>
		<category><![CDATA[programming with databases]]></category>
		<category><![CDATA[query]]></category>
		<category><![CDATA[sql]]></category>
		<category><![CDATA[tuning]]></category>

		<guid isPermaLink="false">http://blog.hardeep.name/?p=112</guid>
		<description><![CDATA[How to use the database SQL to its full potential. The idea is to reduce procedural coding and thereby improve performance, reduce defects.<hr /><small>Copyright &#169; Hardeep Singh 2010<br /> This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 2.5 India License. http://creativecommons.org/licenses/by-nc-nd/2.5/in/ 
Original source: http://blog.hardeep.name
(Digital Fingerprint:<br /> f0469bf091e7eb559fea0d3023145aa7)</small>]]></description>
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