optimize

[edson fernando]

how to optimize this script?

$conexao = mysql_connect("localhost","USER","PASS");

$db = mysql_select_db("BD1");

$sql1 = mysql_query("SELECT * FROM chanel WHERE user='$user'");

$db = mysql_select_db("BD2");


while ($row = mysql_fetch_row($sql1)) {

$sql3 = mysql_query("SELECT * FROM music WHERE id='$row[1]'");
$inserir = mysql_fetch_row($sql3);

echo "$inserir[1] - $inserir[2]";
}

mysql_close($conexao);