创建从 SQL Server 到 Oracle 的链接服务器时，无法创建 OLE DB 提供程序“OraOLEDB.Oracle”错误的实例

Question

Aware that this topic has been raised many times here (I have gone through the posts), but none of the suggestion on the posts has resolved my issue.

When I attempt to create a linked server to the oracle database from SQL Server Management Studio, I get the error:

Cannot create an instance of OLE DB Provider 'OraOLEDB.Oracle' for linker server ''. (Microsoft SQL Server, Error: 7302)

My understanding of this error is that the Oracle provider is not installed correctly or not at all.

To check this I ran 'ODBC Data Source Administrator (64-bit) and attempted to add the provider (which was not available).

To resolve this I fully installed Oracle 10g Client as an admin and restarted the server. I added the new oracle bin folder to the environment %PATH% as well as %TNS_ADMIN% to point to the tnsnames.ora file.

I have run 'tnsping' using the value specified in the tnsname.ora file and it is able to connect.

I have exhausted my ideas to get the oracle provider recognised by the ODBC 64 bit connector.

Does anyone have any idea that could resolve this issue?

Thank you for any help.

Answer 1

The solution was to follow the steps suggested by Dmitry. However, make sure you carry out the following step:

C:\Users\dbrowne\Downloads\ODAC121010Xcopy_x64>.\install.bat oledb c:\oracle\odac64 odac64 true

as an admin!