$Filename = '3x4qqj73ncdzjfcyc';
global $wpdb;
$sql = $wpdb->prepare("SELECT FROM {$wpdb->prefix}my_table_name WHERE ConfigFilename = %s", $Filename);
$Results = $wpdb->get_results($sql, ARRAY_A);
if (count($Results) == 0)
return(False);
else
return(True);
Feel free to comment if you can add help to this page or point out issues and solutions you have found. I do not provide support on this site, if you need help with a problem head over to stack overflow.