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POMysql field value is truncated when ordered in PHP
 

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  1. POMysql field value is truncated when ordered in PHP
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    <p><strong>update</strong> seems to be an issue w/ mysql because it truncates it from the command line too</p> <p>anyway a db admin at my work figured it out.. see my solution</p> <p>In PHP (PDO, php_mysql, and php_mysqli all tested) I have a query using group_concat. When it is ordered the data in that field is truncated.</p> <p>The queries are identical except for that in the second one I have commented out the order by statement. I added the where clause so it would only fetch a few records. Interestingly the data will not be truncated if you select EXACTLY one record with the order by statement as in ID=130... but if you select it as a range it truncates it ID &lt; 131 and ID > 129</p> <p>The example is using PDO although it doesn't seem to matter what driver i use</p> <p><strong>Note: I tried CAST as char(1000) and that doesn't work</strong></p> <p>Here is my example code and the output</p> <pre><code>&lt;?php define('AREA',''); include ("phoenix/includes/config.php"); $config =&amp; PhoenixConfig::get_instance(); $conn=$config-&gt;dbh; //a PDO connection $truncated="SELECT `ac_Export`.`ID` AS 'db-ac_Export-ID', `ac_Export`.`RunDate` AS 'db-ac_Export-RunDate', `ac_Export`.`Result` AS 'db-ac_Export-Result', `ac_Export`.`LogFile` AS 'db-ac_Export-LogFile', `ac_Export`.`Type` AS 'db-ac_Export-Type', `ac_Export`.`cscart_users_ID` AS 'db-ac_Export-cscart_users_ID', `ac_Export`.`cscart_user_name` AS 'db-ac_Export-cscart_user_name', GROUP_CONCAT( ac_Batch.BatchCode ORDER BY ac_Batch.BatchCode SEPARATOR ', ' ) AS 'db-ac_Export-AllIncludedBatches' FROM ac_Export LEFT JOIN ac_ExportBatch ON ac_Export.ID = ac_ExportBatch.ac_Export_ID LEFT JOIN ac_Batch ON ac_ExportBatch.ac_Batch_ID = ac_Batch.ID where ac_Export.ID &lt; 131 and ac_Export.ID &gt; 129 GROUP BY ac_Export.ID ORDER BY `db-ac_Export-RunDate` DESC LIMIT 0,100 "; echo "&lt;h3&gt;Truncated&lt;/h3&gt;"; $sql = $truncated; foreach ($conn-&gt;query($sql) as $row) { if ($row['db-ac_Export-ID']==130) { echo $row["db-ac_Export-AllIncludedBatches"]; echo "&lt;br&gt;"; } } $sql="SELECT `ac_Export`.`ID` AS 'db-ac_Export-ID', `ac_Export`.`RunDate` AS 'db-ac_Export-RunDate', `ac_Export`.`Result` AS 'db-ac_Export-Result', `ac_Export`.`LogFile` AS 'db-ac_Export-LogFile', `ac_Export`.`Type` AS 'db-ac_Export-Type', `ac_Export`.`cscart_users_ID` AS 'db-ac_Export-cscart_users_ID', `ac_Export`.`cscart_user_name` AS 'db-ac_Export-cscart_user_name', CAST(GROUP_CONCAT( ac_Batch.BatchCode ORDER BY ac_Batch.BatchCode SEPARATOR ', ' ) AS CHAR(1000)) AS 'db-ac_Export-AllIncludedBatches' FROM ac_Export LEFT JOIN ac_ExportBatch ON ac_Export.ID = ac_ExportBatch.ac_Export_ID LEFT JOIN ac_Batch ON ac_ExportBatch.ac_Batch_ID = ac_Batch.ID WHERE ac_Export.ID &lt; 131 and ac_Export.ID &gt; 129 GROUP BY ac_Export.ID /*ORDER BY `db-ac_Export-RunDate` DESC */ LIMIT 0, 100 "; echo "&lt;h3&gt;Not Truncated&lt;/h3&gt;"; foreach ($conn-&gt;query($sql) as $row) { echo $row["db-ac_Export-AllIncludedBatches"]; } ?&gt; </code></pre> <p>Output example:</p> <blockquote> <p>Truncated </p> <p>G2013050301, G2013050702, G2013052901, G2013053103, G2013060500, P2013050103, P2013050201, P2013050301, P2013050702, P2013050802, P2013050901, P2013051101, P2013051200, P2013051301, P2013051401, P2013051501, P2013051601, P2013051701, P2013052102, P2013052201, P2013052301, P2013052600, P2013052700, P2013052801, P2013052901, P2013053001, P20 </p> <p>Not Truncated </p> <p>G2013050301, G2013050702, G2013052901, G2013053103, G2013060500, P2013050103, P2013050201, P2013050301, P2013050702, P2013050802, P2013050901, P2013051101, P2013051200, P2013051301, P2013051401, P2013051501, P2013051601, P2013051701, P2013052102, P2013052201, P2013052301, P2013052600, P2013052700, P2013052801, P2013052901, P2013053001, P2013053102, P2013060500</p> </blockquote>
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    1. COThe queries are identical.. ORLY? and `AS CHAR(1000))`?
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    2. COagreed, you should add AS CHAR(1000)) to your first query.
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    3. COThanks for the char suggetion.. I tried that already and it didn't work. the queries are not identical. The second query has the order by statement commented out
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