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	<title>The Pythian Blog &#187; fact tables</title>
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		<title>Implementing Many-to-many Relationships in Data Warehousing</title>
		<link>http://www.pythian.com/news/364/implementing-many-to-many-relationships-in-data-warehousing/</link>
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		<pubDate>Fri, 19 Jan 2007 20:24:23 +0000</pubDate>
		<dc:creator>Robert Hamel</dc:creator>
				<category><![CDATA[Oracle]]></category>
		<category><![CDATA[bridge table]]></category>
		<category><![CDATA[data warehouse]]></category>
		<category><![CDATA[dimension tables]]></category>
		<category><![CDATA[dw]]></category>
		<category><![CDATA[fact tables]]></category>
		<category><![CDATA[many-to-many]]></category>
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		<description><![CDATA[This article will discuss how to make many-to-many relationships in data warehousing easily queried by novice SQL users using point-and-click query tools. This is a big problem with Oracle Discoverer-like tools where the metadata layer is basically a set of pre-joined tables from which the user simply clicks on columns and hits the run button. [...]]]></description>
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