I installed Oracle 11g R2 on my Windows 7 64-bit OS.When i'm trying to login to SQL Plus,i can't.As i remember my Username and password is correct.Is there any method to login without giving username and password? or is there a way to get my username & password?Please help me....

thare are three default username.....SYS...SYSTEM....SYSMAN.....try these usernames with ur earlier entered password.

Thnx for your help.....Now it's working.....:):)