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ORA-12535 error on connecting to database

An error occured while connecting to the database: "ORA-12535 :TNS :operation timed out." How do I fix this?

To get past this error, either increase the CONNECT_TIMEOUT parameter in your LISTENER.ORA file or set it to zero, which means to wait indefinitely. You'll have to bounce or reload the listener for the change to take affect.


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