coba ubah jadi seperti ini:
<html>
<head>
<title></title>
</head>
<body>
<table>
<form action="<?php $_SERVER['PHP_SELF']; ?>" method="post">
<tr>
<td>No Juri</td>
<td>:</td>
<td><input name="no_juri" type="text" size="20" maxlength="30" /></td>
</tr>
<tr>
<td>Nama Juri</td>
<td>:</td>
<td><input name="nama_juri" type="text" size="100" maxlength="100" /></td>
</tr>
<tr>
<td height="52"></td>
<td></td>
<td><input type="submit" name="kirim" value="SUBMIT" />
<input type="reset" name="reset" value="RESET" /></td>
</tr>
</form>
</table>
</center>
<p>
<?
if($_POST){
include ('koneksi.php');
/* kamu salah di
$no_juri=$_POST['NO_JURI'];
$nama_juri=$_POST['NAMA_JURI'];
seharusnya : */
$no_juri=$_POST['no_juri'];
$nama_juri=$_POST['nama_juri'];
$sqlstr= "insert into t_juri(NO_JURI,NAMA_JURI)values('$no_juri','$nama_juri')";
var_dump($sqlstr);
$sql=ociparse($conn,$sqlstr);
$cek = ociexecute($sql);
var_dump(oci_error($sql));
$r = ocicommit($conn);
var_dump($r);
if ($cek) {
echo "Proses simpan berhasil dilakukan";
}else {
echo "Proses simpan gagal dilakukan";
}
}
?>
</div>
</body>
</html>
lihat apa yang muncul?