ORA-12638: credential retrieval failed tips

"The Oracle docs note this on the ora-12638 error: ORA-12638: Credential retrieval failed "

Cause: The authentication service failed to retrieve the credentials of a user.

Though sometimes ORA-12638 can be resolved by restarting the database services in cases where Oracle on Windows is being used, although for this user it was not helpful.

However, the following direction was given, and once administered, was a successful resolution to ORA-12638:

Please check the sqlnet.ora file. Change the following entry and try, this will work.

Original Entry - SQLNET.AUTHENTICATION_SERVICES= (NTS)
Modified Entry - SQLNET.AUTHENTICATION_SERVICES= (NONE)


**My Action:Just Restart your Server/Workstation services from your windows Start->Run->"Services.msc". And then try again.

A practical approach for myself: Python Programming.

PHAsE::ZERO

My Tools:

a) Python 2.7 Interpreter- I need to install it before any IDE installation.

b) A simple IDE- PyScripter or whatever I like.

c) Determine my applicable area. Well I have decided to use it for Blender, Dia, Inkscape and Beremiz.

d) Search a list of available packages for python (wxPython, Scipy, numpy etc.)

First of all I am reading about python at Wikipedia site . A well written description is there. I like to quote it for me too.

“Python is an interpreted, general-purpose high-level programming language whose design philosophy emphasizes code readability. Python aims to combine "remarkable power with very clear syntax", and its standard library is large and comprehensive. Its use of indentation for block delimiters is unique among popular programming languages.

Python supports multiple programming paradigms, primarily but not limited to object-oriented, imperative and, to a lesser extent, functional programming styles. It features a fully dynamic type system and automatic memory management, similar to that of Scheme, Ruby, Perl, and Tcl. Like other dynamic languages, Python is often used as a scripting language, but is also used in a wide range of non-scripting contexts”.

I am checking FAQ page. And I have seen this page too- Community jobs .Thats all for me today.