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POError in SQL syntax, check for right syntax to use near '0' at line 1
 

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  1. POError in SQL syntax, check for right syntax to use near '0' at line 1
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    <p>I have meet the error mentioned in the title, here is the code in my PHP file, I have tried to reform my query, but fail to correct the error, can anyone tell me why there is such kind of error, is there the way I form the error is incorrect? I have seen some similar posts, but what I know from those posts is the problem should be my query, but I have no idea how to change it. So may I ask for your help to tell me where is the problem of my query, this can definitely help me to make clear my concept.</p> <pre><code>$query = "SELECT * FROM Tech AS T, Client AS C, Site AS S, Log AS L WHERE T.TechID=L.TechID, C.ClientID=L.ClientID, S.SiteID=L.SiteID"; if($sort=="Tech") $query += "ORDER BY T.TechName ASC, L.Time DSC"; else if($sort=="Client") $query += "ORDER BY C.ClientName ASC, L.Time DSC"; $result = mysql_query($query) or die('Error! ' . mysql_error());; print "Real-Time check in/check out&lt;br&gt;"; print "&lt;table&gt;&lt;th&gt;&lt;td&gt;Tech&lt;/td&gt;&lt;td&gt;Client&lt;/td&gt;&lt;td&gt;Site&lt;/td&gt;"; print "&lt;td&gt;Date and Time&lt;/td&gt;&lt;td&gt;Type&lt;/td&gt;&lt;/th&gt;"; while($row = mysql_fetch_array($result)){ print "&lt;tr&gt;&lt;td&gt;".$row['T.TechName']."&lt;/td&gt;"; print "&lt;td&gt;".$row['C.ClientName']."&lt;/td&gt;"; print "&lt;td&gt;".$row['S.SiteName']."&lt;/td&gt;"; print "&lt;td&gt;".$row['L.Time']."&lt;/td&gt;"; print "&lt;td&gt;".$row['L.Type']."&lt;/td&gt;&lt;/tr&gt;"; } print "&lt;/table&gt;"; </code></pre> <p>Below is the error message:</p> <blockquote> <p>Error! You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '0' at line 1</p> </blockquote>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    2. PO
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    3. PO
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    1. This table or related slice is empty.
    1. CONote that `or die(mysql_error())` should never appear in production code, as [`die`](http://www.phpfreaks.com/blog/or-die-must-die) breaks HTML output and database error messages should never be revealed to non-admin users as it [discloses too much information](http://msdn.microsoft.com/en-us/library/ms995351.aspx#securityerrormessages_topic2). A better approach would be to properly implement error handling (and use PDO instead of the outdated mysql extension, which is being deprecated).
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    2. COAren't you supposed to use a join here ? And I think you forgot to add spaces at your "ORDER BY" strings.
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      1. POError in SQL syntax, check for right syntax to use near '0' at line 1
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    3. CO[Implicit joins](http://stackoverflow.com/questions/44917/) shouldn't be used in favor of [explicit joins](http://stackoverflow.com/questions/2241991/).
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