Please, help me with this:

$preencher = mysql_query("SELECT * FROM alemao");
$update = mysql_query("UPDATE alemao SET codigo = md5(concat(nome,email))");

mysql_close ($db);

whats wrong with my code? when I tell him to

<? if ($update) echo "Insert MD5";
else echo "No"; ?>

he returns "Insert MD5", but nothing happens in the db... whats wrong?

Thank you in advance,


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