Could not locate OCI dll Error

9.23.2009 | Oracle

If you are using 10g client with PL/SQL developer, you may encounter the message “Initialization error: Could not locate OCI dll” when launching PL/SQL Developer. It does not happen with the 8i client so I already suspected that it must be with the 10g client that I recently installed. Luckily, I found this thread in Oracle OTN forum and the solution seems to be easy.

All I have to do is copy a whole bunch of files from the ORAHOME folder to ORAHOME\bin. It seems like PL/SQL Developer is hardwired to find the files under the bin folder. It did the trick and my sql editor is now working. I hope it fixes yours too.

Here’s the screenshot of the files I copied. Take note that I copied them instead of just moving so as not to break anything.

oracle_files_copy_to_bin

Responses

Eric
10.07.2009

can you post the image or list what files you copied. The image is not showing. Thanks!

Charlie
11.04.2009

I’ve got the same problem, but I can’t see your screen shot. Could you email it to me?

Marco
11.25.2009

Same problem here.
I have no files in my ORAHOME folder, only subfolders. So I don’t know what to copy. Can you please publish the screenshot or mail it to me?

kwatog
12.02.2009

sorry guys,! I have updated the post to include the screenshot.

Frank Quednau
12.14.2009

That’s indeed the answer. Which is kinda horrible. I have some simple Oracle client for 11g installed which already has a bin directory…alas, it contains stuff related to mts etc. What a mess…

Bhageerath
1.20.2010

Thanks man.Its working.

Ravi Bhatt
8.11.2010

Hi,

I encountered the same issue with Oracle 11g when I was trying to login using PL/SQL Developer.

I came across some steps which are worth sharing. And its clean means no ddl copying is involved.

Steps:

1) Login to PL/SQL Developer
2) Go to Tools
3) Click Preferences
4) Click Connection in preferences pop-up
5) Select “Orahome90″ under Oracle Home dropdown
6) Apply the changes
7)Close the PL/SQL shell
8) Login again to PL/SQL Developer

And the error is no more.

Hope this post is worth to all the people encountering the same problem.

Thanks,
Ravi Bhatt.

kwatog
8.11.2010

Thanks Ravi Bhatt! The steps you provided works!

Thameera
8.30.2010

Thanx a lot it works :)

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