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Creating a dblink without using tns_alias

If we can't update the tnsnames.ora file, is there a way to create a dblink without using the tns_alias? What is the format that adds in the port number, etc.?

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Oracle 10g does let you use the "hostname:port/service_name" convention instead of a TNS alias when connecting to a remote database with SQL*Plus. However, a quick test of a database link using this convention results in a ORA-12154 error. You'll have to configure your TNSNAMES.ORA config file with the alias you want to use. Your DBA should be able to help you with this.

This was first published in November 2005

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