macho "." eka use karala balanna, without/q , but not if its running over a network , i mean if your using a standalone software ( 1 client software & the server is the same ) "." is correct , because "." mean that the local machine , so that it will work, but if your using more than one machine ,if your using a server to maintain the db and access it from client systems , then, yes you have to specify a IP Address ( Server IP ) , in your case i think your asking about a single instance so "." is correct