ขอถามเรื่องการ select ข้อมูลเยอะๆหน่อยครับ มีวิธีการ select ยังไงครับไม่ให้มัน error ครับ

<?php
set_time_limit(0);
$g=$_GET['group'];
$dbname=$_GET['dbn'];
$hostmsql=$_POST['hmsql'];
$cport=$_GET['port'];
$usermysql=$_GET['umysql'];
$passmysql=$_GET['pmysql'];
$tb=$_GET['tname'];

$objConnect=oci_connect("$usermysql","$passmysql","$dbname")or die("<font color=red><b>Database connection failed !!</b></font>");

$strSQL = "SELECT * FROM $usermysql.$tb";

$objParse = oci_parse ($objConnect, $strSQL);
oci_execute ($objParse,OCI_DEFAULT);
$intNumField = oci_num_fields($objParse);
$i = 0;
?>
<script language="JavaScript">
	function ClickCheckAll(vol)
	{
		var i=1;
		for(i=1;i<=document.frmMain.hdnCount.value;i++)
			{
				if(vol.checked == true)
				{
					eval("document.frmMain.chk"+i+".checked=true");
				}
				else
				{
					eval("document.frmMain.chk"+i+".checked=false");
				}
			}
	}
	</script>
<style type="text/css">
<!--
.style1 {color: #FF0000}
#apDiv1 {
	position:absolute;
	left:112px;
	top:417px;
	width:573px;
	height:18px;
	z-index:1;
}
-->
</style>

<table width="95%" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td><img src="image/banner_small.jpg" width="698" height="189" /></td>
  </tr>
  <tr>
    <td>&nbsp;</td>
  </tr>
  <tr>
    <td><div align="center">กลุ่มแชร์ข้อมูล : <?php echo $g;?></div></td>
  </tr>
  <tr>
    <td>&nbsp;</td>
  </tr>
  <tr>
    <td><fieldset>
    <legend>Table : <?php echo $tb." ".$intNumField." Fields";?></legend>
    <div align="center">
      <form action="Aindex.php?a=17&group=<?php echo $g;?>&tbn=<?php echo $tb;?>&prot=<?php echo $cport;?>&umysql=<?php echo $usermysql;?>&hmsql=<?php echo $hostmsql;?>&dbn=<?php echo $dbname;?>&pmysql=<?php echo $passmysql;?>" name="frmMain" id="frmMain" method="post" OnSubmit="return onDelete();">
        <table width="668" border="0" cellspacing="2" cellpadding="2">
          <tr>
            <td width="73" bgcolor="#C0DEED"><div align="center" class="style1">ลำดับ</div></td>
            <td width="510" bgcolor="#C0DEED"><div align="center" class="style1">ชื่อฟิวล์</div></td>
            <td width="65" bgcolor="#C0DEED"><div align="center">
              <label>
              <input name="CheckAll" type="checkbox" id="CheckAll" value="Y" onClick="ClickCheckAll(this);">
              </label>
            </div></td>
          </tr>
          <?php
       for($i=1;$i<=$intNumField;$i++)
		{
		$fnameok[$i]=oci_field_name($objParse,$i);
		//$typedb[$i]=oci_field_type($objParse,$i);
		?>
          <tr>
            <td bgcolor="#F5F5F5"><div align="center"><?php echo $i;?></div>
            <div align="center"></div><div align="center"></div></td>
            <td bgcolor="#F5F5F5"><div align="left"><?php echo oci_field_name($objParse,$i);?></div></td>
            <td bgcolor="#F5F5F5"><div align="center">
              <label>
              <input type="checkbox" name="chk[]" id="chk<?php echo $i;?>" value="<?php echo oci_field_name($objParse,$i);?>"/>
              <input type="hidden" name="tdb[]" id="tdb<?php echo $i;?>" value="<?php echo oci_field_type($objParse,$i);?>"/>
              </label>
            </div></td>
          </tr>
          <?php
    	  }
				?>
        </table>
          <table width="665" border="0" cellspacing="0" cellpadding="0">
    <tr>
                <td width="107">&nbsp;</td>
              <td width="187">&nbsp;</td>
              <td width="301"><div align="right">&nbsp;&nbsp; </div></td>
<td width="70"><label>
                  <input type="submit" name="button" id="button" value="แชร์ข้อมูล" />
                  <input type="hidden" name="hdnCount" value="<?php echo $i;?>"/>
                </label></td>
            </tr>
            </table>
      </form>
      <br />
    </div>
    </fieldset>    </td>
  </tr>
  <tr>
    <td align="center">
    <div style="width: 690px; height: 500px; overflow: scroll;">
   <table width="322" border="0" align="center" cellpadding="2" cellspacing="2">
      <?php
      $shosql = "SELECT * FROM $usermysql.$tb";
	  $ssq = oci_parse ($objConnect, $shosql);
	  oci_execute ($ssq);
	  $s=0;
 
	  ?>
      <tr>
        <?php
  	  for($s=1;$s<$i;$s++){
	  $fname=oci_field_name($objParse,$s);
	   
	   ?>
        <td bgcolor="#C0DEED" align="left"><?php echo $fname;?></td>
        <?php
       }
   while($memus=oci_fetch_array($ssq)){
   $m++;
  ?>
  </tr>
  <tr>
  <?php
  for($o=1;$o<$s;$o++){
	  $fname=oci_field_name($objParse,$o);
	  $fieldn[$o]=$fname;
  ?>
  <td bgcolor="#F5F5F5" align="left"><?php echo $memus[$fnameok[$o]];?></td>
  <?php
  }
  ?>
</tr>
        <?php
  }

  ?>
     
    </table></div></td>
  </tr>
</table>