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	<title>rstoever.com &#187; Funções analiticas LAG/LEAD</title>
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		<title>Funções analiticas LAG/LEAD</title>
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		<pubDate>Wed, 01 Oct 2008 20:59:08 +0000</pubDate>
		<dc:creator>.rafa</dc:creator>
				<category><![CDATA[Oracle]]></category>
		<category><![CDATA[PL/SQL]]></category>
		<category><![CDATA[acumulado]]></category>
		<category><![CDATA[acumular]]></category>
		<category><![CDATA[analíticas]]></category>
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		<category><![CDATA[funções]]></category>
		<category><![CDATA[Funções analiticas LAG/LEAD]]></category>
		<category><![CDATA[LAG]]></category>
		<category><![CDATA[LEAD]]></category>
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		<category><![CDATA[soma]]></category>
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		<description><![CDATA[Ambas as funções tem como sua sintaxe parecidas: LAG &#40;value_expression &#91;,offset&#93; &#91;,DEFAULT&#93;&#41; OVER &#40;&#91;query_partition_clase&#93; order_by_clause&#41; LEAD &#40;value_expression &#91;,offset&#93; &#91;,DEFAULT&#93;&#41; OVER &#40;&#91;query_partition_clase&#93; order_by_clause&#41; LAG Esta é uma função analitica. Que provem o acesso a mais que um registro de uma tabela ao mesmo tempo sem precisar fazer um join na própria tabela self join. A busca [...]]]></description>
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