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Ora-03121: no interface driver connected - function not performed. [message #598906]

Sat, 19 October 2013 05:22

smehta25
Messages: 5
Registered: June 2013
Location: Jammu

Junior Member

Hi,

Earlier I used to connect properly with my Oracle database. But today when I am trying to connect following error is coming

Ora-03121: no interface driver connected - function not performed.

I have not done any changes in my database.

Please help me in resolving the issue.

Operating System : Windows XP
Oracle : 9i (SQLPLUS 3.3)
Developer 2000 R2.1

Screenshot is attached along with this.

Please help in this regard.

Thanks & Regards,
Seerat Mehta

Attachment: Error.JPG
(Size: 56.76KB, Downloaded 1825 times)

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Re: Ora-03121: no interface driver connected - function not performed. [message #598911 is a reply to message #598906]

Sat, 19 October 2013 11:23

Lalit Kumar B
Messages: 3174
Registered: May 2013
Location: World Wide on the Web

Senior Member

ORA-03121:	no interface driver connected - function not performed

Cause:	This message occurs usually because the Net8 driver is not loaded into memory or there is a mismatch of the version of the driver. A user program linked with an obsolete library may also cause this message. Only programs provided by Oracle Corporation should use this interface.

Action:	If the message occurred during use of a program provided by Oracle Corporation, contact Oracle Support Services. If a user program caused the message, relink the program with current versions of the Oracle libraries.

How are you connecting to DB?
If you use any connection string, check the connection string properly.
Do you same error connecting with sqlplus?
What is the SQL*Net version?

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Re: Ora-03121: no interface driver connected - function not performed. [message #598913 is a reply to message #598911]

Sat, 19 October 2013 15:45

Littlefoot
Messages: 21823
Registered: June 2005
Location: Croatia, Europe

Senior Member
Account Moderator

What changed on your computer since yesterday? You said that you didn't touch the database. Did you do anything else? Install some new software, or example?

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