when insert a lot of rows, sometimes got error, and found
not really the value is too large for the column:

2 OCIStmtExecute: ORA-01401: inserted value too large for column
 /usr/local/lib/php/DB/oci8.php 149 Array
-----------------------------------------
   $sql = "insert into Emails(email, URL, Status, createdDt)";
   $sql .= "values ('$email','$URL','$status','$date')";

   $res = $db->query($sql);
   if (DB::isError($res) ){
     die($res->getMessage());
   }
   $result = $db->commit();