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ORA-12638

https://forums.devart.com/viewtopic.php?f=5&t=12427

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ORA-12638

Posted: Thu 26 Jun 2008 17:16
by Babnik42
I have a user complaining of occasional ora-12638 (Credential Retrieval Failed) errors when trying to connect to an Oracle 10g database using an application which we produce using odac components. We use Oracle authentication, but it seems that NT authentication is being attempted here. I'm not even sure how to use NT authentication with ODAC. Has anyboday seen this problem, and do you have a solution?

Posted: Fri 27 Jun 2008 13:20
by Challenger
If Username and Password properties are not specified then Oracle will use authentication information that was supplied at operating system login process. (part of the TOraSession.Connect description form ODAC Help). Please refer to this link.
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