I am updating the data in database from php and Getting Up Error:Query was empty with query. I badly need help. Thanks in Advance
<?php
$dbhost = 'localhost';
$dbuser = 'root';
$myDBname = 'jsv';
$conn = mysql_connect("localhost", "root");
mysql_select_db('jsv');
if(isset($_POST['update']))
{
$nam = $_POST['namnid'];
$mandag = $_POST['mandagid'];
$tisdag = $_POST['tisdagid'];
$torsdag = $_POST['torsdagid'];
$fredag = $_POST['fredagid'];
$sql = mysql_query("INSERT INTO jsv(CA_ID,Name,Address,Amount) VALUES ('$mandag', '$tisdag', '$torsdag', '$fredag') WHERE Setup_Box_No = '$nam'", $conn);
if(!$sql )
{
die('Could not update data: ' . mysql_error());
}
echo "Updated data successfully\n";
}
mysql_close($conn);
?>