ORA-12545: Connect failed because target host or object does not exist

ORA-12545
ORA-12545: Connect failed because target host or object does not exist
Cause: The address specified is not valid, or the program being connected to does
not exist.
Action: Ensure the ADDRESS parameters have been entered correctly; the most
likely incorrect parameter is the node name. Ensure that the executable for the
server exists (perhaps "oracle" is missing.) If the protocol is TCP/IP, edit the
TNSNAMES.ORA file to change the host name to a numeric IP address and try
again.
More details : Viste http://www.high-oracle.com/ora-12545/
More details : Viste http://www.high-oracle.com/ora-12545/
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Your source for help on all Oracle database error codes :
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Error Oracle : ora-16950 http://www.high-oracle.com/ora-16950/
Error Oracle : ora-12160 http://www.high-oracle.com/ora-12160/
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