Since Oracle Forms and the Oracle database run in separate home directories, you can't just seamlessly connect the Forms application to the database. You'll have to connect through some network protocol like TCP/IP. This means that for the Oracle Developer home, you'll have to configure both SQLNET.ORA and TNSNAMES.ORA. In your TNSNAMES.ORA, you will have an alias pointing to your Oracle instance. When you fire up Forms, you will specify this alias along with your userid and password to connect to the database.
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