Oracle® Database 8i | 9i | 10g | 11g | 12c | 18c | 19c Error Codes

Information for Database Error Code ORA-12203: TNS:unable to connect to destination
Oracle® Database Error ORA-1220328/11

ORA-12203: TNS:unable to connect to destination

Cause: Invalid address specified or destination is not listening. This error can also occur because of underlying network or network transport problems.

Action: Verify that the net service name you entered was correct. Verify that the ADDRESS portion of the connect descriptor which corresponds to the net service name is correct. Ensure that the destination process (for example the listener) is running at the remote node.

Error Type: ORA

Oracle® Database Error Codes 8i | 9i | 10g | 11g | 12c | 18c | 19c

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