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	<title>Coder Circle &#187; Null values in Oracle</title>
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		<title>Null Values in Oracle</title>
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		<pubDate>Fri, 25 Jan 2008 09:57:43 +0000</pubDate>
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				<category><![CDATA[Database]]></category>
		<category><![CDATA[Null values in Oracle]]></category>
		<category><![CDATA[Select clause]]></category>

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		<description><![CDATA[NULL in Oracle means empty. You need really a special mechanism to handle NULL values in Oracle
Oracle supoorts the NVL function to handle NULL values.
NULL means empty, so it is neither zero nor spaces. NULL value takes place, when the user does not enter any data in the respective columns.
So, if you encounter a null [...]]]></description>
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