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	<title>Relational algebra - Revision history</title>
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	<updated>2026-04-23T08:01:11Z</updated>
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		<title>86.1.237.165: /* θ-join and equijoin */</title>
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		<updated>2015-01-11T20:09:59Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;θ-join and equijoin&lt;/span&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 22:09, 11 January 2015&lt;/td&gt;
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		<author><name>86.1.237.165</name></author>
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		<id>https://en.formulasearchengine.com/index.php?title=Relational_algebra&amp;diff=225317&amp;oldid=prev</id>
		<title>en&gt;Bulwersator: Removing {{cleanup}} tag without a reason (script-assisted edit)</title>
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		<updated>2014-02-13T03:27:23Z</updated>

		<summary type="html">&lt;p&gt;Removing {{cleanup}} tag without a reason (&lt;a href=&quot;/index.php?title=User:This,_that_and_the_other/cleanupCleanup.js&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;User:This, that and the other/cleanupCleanup.js (page does not exist)&quot;&gt;script-assisted edit&lt;/a&gt;)&lt;/p&gt;
&lt;a href=&quot;https://en.formulasearchengine.com/index.php?title=Relational_algebra&amp;amp;diff=225317&amp;amp;oldid=2667&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>en&gt;Bulwersator</name></author>
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		<title>128.239.168.146: /* {{visible anchor|Division}} (÷) */ Division result was incorrect</title>
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		<updated>2014-02-04T03:10:05Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;{{visible anchor|Division}} (÷): &lt;/span&gt; Division result was incorrect&lt;/p&gt;
&lt;a href=&quot;https://en.formulasearchengine.com/index.php?title=Relational_algebra&amp;amp;diff=2667&amp;amp;oldid=225316&quot;&gt;Show changes&lt;/a&gt;</summary>
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		<title>en&gt;Mindmatrix: Reverted edits by 14.96.189.118 (talk) to last version by Rishig327</title>
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		<updated>2012-08-26T13:09:52Z</updated>

		<summary type="html">&lt;p&gt;&lt;a href=&quot;/index.php?title=Help:Reverting&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Help:Reverting (page does not exist)&quot;&gt;Reverted&lt;/a&gt; edits by &lt;a href=&quot;/wiki/Special:Contributions/14.96.189.118&quot; title=&quot;Special:Contributions/14.96.189.118&quot;&gt;14.96.189.118&lt;/a&gt; (&lt;a href=&quot;/index.php?title=User_talk:14.96.189.118&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;User talk:14.96.189.118 (page does not exist)&quot;&gt;talk&lt;/a&gt;) to last version by Rishig327&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&lt;br /&gt;
&lt;br /&gt;
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