จะสร้าง Drop Down Menu แบบ PHP จากฐานข้อมูล Oracle ยังไงครับ

<?
$objConnect = oci_connect("myuser","mypassword","TCDB");
$strSQL = "SELECT * FROM CUSTOMER WHERE GENDER";
$objParse = oci_parse ($objConnect, $strSQL);
oci_execute ($objParse,OCI_DEFAULT);
?>  
<select name="ddlGender">
<?
while($objResult = oci_fetch_array($objParse,OCI_BOTH))
{
?>  
<option value="<?=$objResult["ID"];?>"><?=$objResult["GENDER_NAME"];?></option>
<?
}
?>	
</select>

<select name="ddlGender"> 
<? 
while($objResult = oci_fetch_array($objParse,OCI_BOTH)) 
{ 
?>   
<option value="<?=$objResult["USERNAME"];?>"><?=$objResult["USER_SEX"];?></option> 
<? 
} 
?>     
</select></td>

<?
$objConnect = oci_connect("scott","tiger","orcl");
$strSQL = "SELECT * FROM THEME WHERE USERNAME = '".$_GET["USERNAME"]."' ";
$objParse = oci_parse ($objConnect, $strSQL);
oci_execute ($objParse,OCI_DEFAULT);
$objResult = oci_fetch_array($objParse);
if(!$objResult)
{
	echo "Not found USERNAME=".$_GET["USERNAME"];
}
else
{
	
?>
<table width="600" border="1">
  <tr>
 <th width="107"> <div align="center"><strong>Username</strong></div></th>
<th width="102"> <div align="center"><strong>Password</strong></div></th>
<th width="102"> <div align="center"><strong>Confirm Password </strong></div></th>
<th width="48"> <div align="center"><strong>Sex </strong></div></th>
<th width="350"><div align="center"><strong>E-mail</strong></div></th>
  </tr>
  <tr>
    <td><div align="center"><input type="text" name="txtUSERNAME" size="5" value="<?=$objResult["USERNAME"];?>"></div></td>
    <td><input type="password" name="txtPASSWORD1" size="20" value="<?=$objResult["PASSWORD1"];?>"></td>
    <td><input type="password" name="txtPASSWORD2" size="20" value="<?=$objResult["PASSWORD2"];?>"></td>
    <td> 
<select name="ddlGender"> 
<? 
while($objResult = oci_fetch_array($objParse,OCI_BOTH)) 
{ 
?>   
<option value="<?=$objResult["USERNAME"];?>"><?=$objResult["USER_SEX"];?></option> 
<? 
} 
?>     
</select></td>

    <td><input type="text" name="txtUSER_E_MAIL" size="40" value="<?=$objResult["USER_E_MAIL"];?>"></td>
  </tr>
  </table>
  <input type="submit" name="submit" value="submit">
  <?
  }
  oci_close($objConnect);
  ?>

<select name="ddlGender">
<?
while($objResult = oci_fetch_array($objParse,OCI_BOTH))
{
?>
<option value="<?=$objResult["USERNAME"];?>"><?=$objResult["USER_SEX"];?></option>
<?
}
?>
</select>