I am new to Oracle (from a SQL server and MySQL background) and have just installed Oracle 11g2 Express Edition.
I have downloaded SQL developer which appears to be the Oracle world's equivalent to SSMS. I have gone to the new connection window, given my connection a name, used SYSTEM as the user and my password that I set up at installation. I have left hostname/port/sid as default (localhost/1521/xe respectively)
If I click test I get "status: success" However, if I click the connect button, nothing happens.
What am I missing here?


listener.orafile of your local system ans make sure it has TNS entries of your database.SYS, you need to set theROLEtoSYSDBA.