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		<title>VB.Net/Database ADO.net/Database NULL - История изменений</title>
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		<updated>2026-04-06T00:10:25Z</updated>
		<subtitle>История изменений этой страницы в вики</subtitle>
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	<entry>
		<id>http://www.vbex.ru/index.php?title=VB.Net/Database_ADO.net/Database_NULL&amp;diff=678&amp;oldid=prev</id>
		<title> в 16:40, 26 мая 2010</title>
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				<updated>2010-05-26T16:40:06Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;ru&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Предыдущая&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Версия 16:40, 26 мая 2010&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; style=&quot;text-align: center;&quot; lang=&quot;ru&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(нет различий)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
			</entry>

	<entry>
		<id>http://www.vbex.ru/index.php?title=VB.Net/Database_ADO.net/Database_NULL&amp;diff=679&amp;oldid=prev</id>
		<title>Admin: 1 версия</title>
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				<updated>2010-05-26T12:44:49Z</updated>
		
		<summary type="html">&lt;p&gt;1 версия&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Новая страница&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==System Null and DB NUll==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
&amp;lt;source lang=&amp;quot;vbnet&amp;quot;&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Public Class MainClass&lt;br /&gt;
   Public Shared Sub Main()&lt;br /&gt;
       &amp;quot;Strings&lt;br /&gt;
        Dim strConstant As String = &amp;quot;ABC&amp;quot;&lt;br /&gt;
        Dim strRepeat As New String(&amp;quot;A&amp;quot;c, 20)&lt;br /&gt;
        Dim strMyString As String = &amp;quot;Hello World&amp;quot;&lt;br /&gt;
&lt;br /&gt;
       strMyString = Nothing&lt;br /&gt;
        Dim sysNull As System.DBNull&lt;br /&gt;
        If strMyString Is sysNull Then&lt;br /&gt;
            strMyString = &amp;quot;Initialize my String&amp;quot;&lt;br /&gt;
        End If&lt;br /&gt;
        If Not IsDBNull(strMyString) Then&lt;br /&gt;
            Console.WriteLine(strMyString)&lt;br /&gt;
        End If&lt;br /&gt;
        &lt;br /&gt;
   End Sub&lt;br /&gt;
End Class&lt;br /&gt;
&lt;br /&gt;
           &lt;br /&gt;
       &amp;lt;/source&amp;gt;&lt;/div&gt;</summary>
		<author><name>Admin</name></author>	</entry>

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