Примечание: неопределенный индекс:

У меня проблема с моим кодом.
если я использую select * from $table это все хорошо, но
теперь с отборным отчетливым он показывает мне

Notice: Undefined index: L_code in /home/lab_users/web_tue25/web_pages/2014-12-09/stats03-04e.php on line 70

и он показывает то же самое для всех переменных A / A и т. д.

Может ли кто-нибудь помочь мне найти мою ошибку (ы) ???

Спасибо

<?phpinclude_once "dbconnect.php";

$sql = "SELECT DISTINCT akexam = '2003-04.e' FROM $table ";
$result = $dblink->query($sql);

if ($result->num_rows !== 0)
{
echo '<table border="1" style="width:100%; border: 1px solid black; border-collapse:collapse; text-align: center;">
<tr bgcolor= #787878>

<th>A/A</th>
<th>ak.εξαμ.</th>
<th>L_code</th>
<th>τ.ε</th>
<th>ck</th>
<th>rb</th>
<th>L_descr</th>
<th>ΔΗΛ</th>
<th>ΣΥΜ</th>
<th>a</th>
<th>b</th>
<th>c</th>
<th>d</th>
<th>e</th>
<th>f</th>
<th>ΣΥΝ</th>
<th>ok</th>
<th>ok%</th>

</tr>';

while($row = $result->fetch_assoc())
{
echo '<tr bgcolor= purple>';
if(strstr($row["L_code"],"241"))
{
echo "<td style= text-align:left>".$row["A/A"]."</td>";
echo "<td style= text-align:left>".$row["akexam"]."</td>";
echo "<td style= text-align:left>".$row["L_code"]."</td>";
echo "<td>".$row["te"]."</td>";
echo "<td> <input type='checkbox' name= 'ch' value='1'></td>";
echo "<td> <input type='radio' name='labs' value='1'></td>";
echo "<td>".$row["L_descr"]."</td>";
echo "<td style= text-align:right>".$row["dhl"]."</td>";
echo "<td style= text-align:right>".$row["sym"]."</td>";
echo "<td style= text-align:right>".$row["a"]."</td>";
echo "<td style= text-align:right>".$row["b"]."</td>";
echo "<td style= color:blue>".$row["c"]."</td>";
echo "<td style= color:blue>".$row["d"]."</td>";
echo "<td style= color:blue>".$row["e"]."</td>";
echo "<td style= color:blue>".$row["f"]."</td>";
echo "<td style= text-align:right>".$row["syn"]."</td>";
echo "<td style= text-align:right>".$row["ok"]."</td>";
echo "<td style= text-align:right>".$row["ok%"].'%';"</td>";
}
else
{
echo '<tr bgcolor= baby blue>';

echo "<td style= text-align:left>".$row["A/A"]."</td>";
echo "<td style= text-align:left>".$row["akexam"]."</td>";
echo "<td style= text-align:left>".$row["L_code"]."</td>";
echo "<td>".$row["te"]."</td>";
echo "<td> <input type='checkbox' name= 'ch' value='1'></td>";
echo "<td> <input type='radio' name='theories' value='1'></td>";
echo "<td>".$row["L_descr"]."</td>";
echo "<td style= text-align:right>".$row["dhl"]."</td>";
echo "<td style= text-align:right>".$row["sym"]."</td>";
echo "<td style= text-align:right>".$row["a"]."</td>";
echo "<td style= text-align:right>".$row["b"]."</td>";
echo "<td style= color:blue>".$row["c"]."</td>";
echo "<td style= color:blue>".$row["d"]."</td>";
echo "<td style= color:blue>".$row["e"]."</td>";
echo "<td style= color:blue>".$row["f"]."</td>";
echo "<td style= text-align:right>".$row["syn"]."</td>";
echo "<td style= text-align:right>".$row["ok"]."</td>";
echo "<td style= text-align:right>".$row["ok%"].'%';"</td>";
}echo '</tr>';
}

echo '</table>';

}
else
{
echo "0 results";
}