hi..
check the database name is there or not?
Can u send ur code...

This is my code:
<?php
$username = "aaa";
$password = "aaa";
$hostname = "localhost";
$dbh=mysql_connect($hostname, $username, $password)
or
die("unable to connect to the datatabase");
print "connected to MYSQL<br>";
mysql_close($dbh);
?>
/*I am not giving any database name, initially i just want to connect to MySql database*/

Thank you

Try or die(mysql_error()); instead of your custom message. This will let you know what exactly is the error.