Oracle : Ошибка ORA-06420

06420, 0000, "NETCMN: SID lookup failure"
*Cause: From the remote host's server: the database SID,
specified in the login (connect) string, was not recognized.
*Action: Add the appropriate SID entry to the CONFIG.ORA or oratab file
on the remote host (restarting the remote server may be needed).

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