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    <title>Posteet: mysql,optimisation</title> 
    <link>http://www.posteet.com/</link> 
    <description>Recent posteets posted to Posteet</description>
    <ttl>60</ttl>

    
    <item>
        <title>Repérer des doublons dans une table MySQL (sur une ou plusieurs colonnes)</title>
        <link>http://www.posteet.com/view/579</link>
        <description>
        <![CDATA[<pre>SELECT count(*), colonne1, colonne2 FROM matable GROUP BY colonne1, colonne2 HAVING count(*) &gt; 1</pre> <a href="http://www.posteet.com/tags/doublons">[doublons]</a>  <a href="http://www.posteet.com/tags/mysql">[mysql]</a>  <a href="http://www.posteet.com/tags/optimisation">[optimisation]</a> ]]>        </description>
        <dc:creator>spirit</dc:creator>
        <pubDate>Thu, 13 Dec 2007 08:40:04 +0000</pubDate>

            <category>doublons</category>
            <category>mysql</category>
            <category>optimisation</category>
    
    </item>

  
    <item>
        <title>augmenter la taillle de la table innodb sous MySQL</title>
        <link>http://www.posteet.com/view/53</link>
        <description>
        <![CDATA[<pre>#/etc/mysql/my.conf 
#La valeur par défautest 8M, passé a 1024Mo pour une machine à 3Go de RAM
   
 [mysqld]
set-variable=innodb_buffer_pool_size=1024M
innodb_flush_log_at_trx_commit = 0 #mettre à 1 si crash sql
innodb_flush_method = O_DSYNC
innodb_additional_mem_pool_size = 20M
innodb_log_file_size = 250M
innodb_log_buffer_size = 8M
innodb_data_file_path = ibdata1:10000M</pre> <a href="http://www.posteet.com/tags/mysql">[mysql]</a>  <a href="http://www.posteet.com/tags/optimisation">[optimisation]</a> ]]>        </description>
        <dc:creator>neorom</dc:creator>
        <pubDate>Wed, 03 Oct 2007 07:31:02 +0000</pubDate>

            <category>mysql</category>
            <category>optimisation</category>
    
    </item>


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