Home » RDBMS Server » Server Administration » ora-12560:TNS: protocol adapter error
ora-12560:TNS: protocol adapter error [message #273844] Thu, 11 October 2007 22:59 Go to next message
Messages: 81
Registered: July 2007
Location: Indore
hello all,

when ever i connect to connect / as sysdba i got a error
ora-12560:TNS: protocol adapter error

service all are automatic..

please help me

thanks and regards,
Re: ora-12560:TNS: protocol adapter error [message #273845 is a reply to message #273844] Thu, 11 October 2007 23:06 Go to previous messageGo to next message
Messages: 25531
Registered: January 2009
Location: SoCal
Senior Member
I am confused by your post.
It appears that you are connecting to local database, so I don't understand how/why you are posting a SQL*Net error.

12560, 00000, "TNS:protocol adapter error"
// *Cause: A generic protocol adapter error occurred.
// *Action: Check addresses used for proper protocol specification. Before
// reporting this error, look at the error stack and check for lower level
// transport errors. For further details, turn on tracing and reexecute the
// operation. Turn off tracing when the operation is complete.
Re: ora-12560:TNS: protocol adapter error [message #273870 is a reply to message #273844] Fri, 12 October 2007 01:21 Go to previous message
Michel Cadot
Messages: 65085
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
Account Moderator
Did you set ORACLE_HOME and ORACLE_SID variables?

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