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		<title>PostgreSQL/Select Query/Expressions - История изменений</title>
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		<updated>2026-05-24T10:05:48Z</updated>
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		<id>http://www.sqle.ru/index.php?title=PostgreSQL/Select_Query/Expressions&amp;diff=4880&amp;oldid=prev</id>
		<title> в 13:45, 26 мая 2010</title>
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				<updated>2010-05-26T13:45:56Z</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;
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				&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 13:45, 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>
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	<entry>
		<id>http://www.sqle.ru/index.php?title=PostgreSQL/Select_Query/Expressions&amp;diff=4881&amp;oldid=prev</id>
		<title>Admin: 1 версия</title>
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				<updated>2010-05-26T10:14:24Z</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;==Using expressions==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
  &amp;lt;!-- start source code --&amp;gt;&lt;br /&gt;
   &lt;br /&gt;
    &amp;lt;source lang=&amp;quot;sql&amp;quot;&amp;gt;&lt;br /&gt;
&lt;br /&gt;
postgres=# -- Using expressions&lt;br /&gt;
postgres=#&lt;br /&gt;
postgres=# CREATE FUNCTION a_function () RETURNS int4 AS &amp;quot;&lt;br /&gt;
postgres&amp;quot;# DECLARE&lt;br /&gt;
postgres&amp;quot;#    an_integer int4;&lt;br /&gt;
postgres&amp;quot;# BEGIN&lt;br /&gt;
postgres&amp;quot;#    an_integer := 10 * 10;&lt;br /&gt;
postgres&amp;quot;#    return an_integer;&lt;br /&gt;
postgres&amp;quot;# END;&lt;br /&gt;
postgres&amp;quot;# &amp;quot; LANGUAGE &amp;quot;plpgsql&amp;quot;;&lt;br /&gt;
CREATE FUNCTION&lt;br /&gt;
postgres=#&lt;br /&gt;
postgres=#&lt;br /&gt;
postgres=# SELECT a_function() AS output;&lt;br /&gt;
 output&lt;br /&gt;
--------&lt;br /&gt;
    100&lt;br /&gt;
(1 row)&lt;br /&gt;
postgres=#&lt;br /&gt;
postgres=# drop function a_function();&lt;br /&gt;
DROP FUNCTION&lt;br /&gt;
postgres=#&lt;br /&gt;
postgres=#&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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