Oracle Database Errors or Warnings from Error ORA-12638 to ORA-12649

SQLServerF1

ORA-12638: Credential retrieval failed
Cause: The authentication service failed to retrieve the credentials of a user.
Action: Enable tracing to determine the exact error.
ORA-12639: Authentication service negotiation failed
Cause: No match was found between the types of authentication services that the client supports and those that the server is using.
Action: Possible solutions:
1. Change the entry in sqlnet.ora that determines which services are to be used.

2. Relink the client with at least one of the authentication service adapters that the server supports.

3. Relink the server with at least one of the authentication service adapters that the client supports.

4. Disable authentication on both the client and server.

ORA-12640: Authentication adapter initialization failed
Cause: The function specified in the authentication table entry for the service failed.
Action: Enable tracing to determine the exact error.

ORA-12641: Authentication service failed to initialize
Cause: The authentication service failed during initialization.
Action: Enable tracing to determine the exact error.
ORA-12642: No session key
Cause: A process has no session key associated with it because the authentication service being used does not use one.
Action: If a session key is required, use another authentication service.
ORA-12643: Client received internal error from server
Cause: The client process received an error from the server that indicated that an internal Oracle Net native services error had occurred.
Action: Enable tracing on both processes and attempt to recreate the problem. If successful in recreating the problem, contact Oracle Customer Support.

ORA-12645: Parameter does not exist.
Cause: A sqlnet.ora parameter from which a value was needed does not exist.
Action: Set the parameter in the parameter file.
ORA-12646: Invalid value specified for boolean parameter
Cause: The value specified for a parameter was set to a value other than true/false or on/off.
Action: Correct the value of the parameter.
ORA-12647: Authentication required
Cause: The parameter that controls whether authentication is required was set to true, but the executable does not have an authentication service linked in.
Action: Either re-link the executable with an authentication service adapter or disable the parameter.
ORA-12648: Encryption or data integrity algorithm list empty
Cause: An Oracle Advanced Security list-of-algorithms parameter was empty, e.g. “()”.
Action: Change the list to contain the name of at least one installed algorithm, or remove the list entirely if every installed algorithm is acceptable.
ORA-12649: Unknown encryption or data integrity algorithm
Cause: An Oracle Advanced Security list-of-algorithms parameter included an algorithm name that was not recognized.
Action: Either remove that algorithm name, correct it if it was misspelled, or install the driver for the missing algorithm.

Above are list of Oracle Database Errors or Warnings from Error ORA-12638 to ORA-12649 received while performing certain operation against Oracle Database or related products.

What are Oracle Database Error Messages?

Oracle Error Messages may be returned while using products which are part of Oracle Database.  Each Oracle Database Error or Warning Message mentioned above contains the Warning or Error Message Statement, a short explanation of the probable causes of the Error message, and a recommended action.

Hope this was helpful.

Thanks,
SQLServerF1 Team
Information about Oracle Database Error Messages or Warning Messages on Windows and Linux Operating Systems.

 

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