Form Data

[Salchester]

Bonjour (That's all the French I know!!!)

I'm currenlty using the following code, to add data from a form into a database called records. Does anybody know how I can stop dulicate records by checking to see if the name entered is already in the database?

<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
  die('Could not connect: ' . mysql_error());
}

mysql_select_db("WB", $con);

$sql="INSERT INTO Records (Name, Age, Sex)
VALUES
('$_POST[Name]','$_POST[Age]','$_POST[Sex]')";

if (!mysql_query($sql,$con))
{
  die('Error: ' . mysql_error());
}
echo $_POST[Name] . "'s details were saved successfully!";

mysql_close($con)
?>

Many Thanks,