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	<title>freude-code &#187; delete</title>
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		<title>Nested Set Model</title>
		<link>http://www.freude-co.de/2008/07/21/nested-set-model/</link>
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		<pubDate>Mon, 21 Jul 2008 07:29:21 +0000</pubDate>
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				<category><![CDATA[PHP]]></category>
		<category><![CDATA[delete]]></category>

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		<description><![CDATA[Zuerst legen wir eine Beispiel Tabelle an: CREATE TABLE nested_category ( category_id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(20) NOT NULL, lft INT NOT NULL, rgt INT NOT NULL); INSERT INTO nested_category VALUES(1,&#039;ELECTRONICS&#039;,1,20),(2,&#039;TELEVISIONS&#039;,2,9),(3,&#039;TUBE&#039;,3,4), (4,&#039;LCD&#039;,5,6),(5,&#039;PLASMA&#039;,7,8),(6,&#039;PORTABLE ELECTRONICS&#039;,10,19), (7,&#039;MP3 PLAYERS&#039;,11,14),(8,&#039;FLASH&#039;,12,13), (9,&#039;CD PLAYERS&#039;,15,16),(10,&#039;2 WAY RADIOS&#039;,17,18); Wenn das geschen ist, können wir uns eine Baumstruktur anzeigen lassen (Right und Left sind [...]]]></description>
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