Yes, you can connect with SQL Developer.
First, you make sure that tnsnames.ora which was setup when you installed oracle, is configured to point to the instance of your oracle database.
It looks something like this:
# TNSNAMES.ORA Network Configuration File: C:\oracle\product\9i\OEM\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ACS.Mydoamin.us =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = db1)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = ACSProduction or whatever)
)
)
Then on SQL Developer, you see connections to the top left corner of SQL Developer once it is launced.
Right-click on connections.
on Connection Name: give it any name.
Username: Scott or your username
Password: Tiger or your password
Choose TNS as your connection Type
Select the Network Alias radio button and give it the name you find in your tnsnames.ora and baring any mistakes, it should connect you.
You can also use SQL Plus to do so.
Hope this helps.
