“Cannot create an instance of OLE DB provider” error as Windows Authentication user

Question

I am trying to run openrowset from MS SQL Server on an Oracle server.

When i execute the following command:

select * from
OPENROWSET(\'OraOLEDB.Oracl         


        

Answer 1

Received this same error on SQL Server 2017 trying to link to Oracle 12c. We were able to use Oracle's SQL Developer to connect to the source database, but the linked server kept throwing the 7302 error.

In the end, we stopped all SQL Services, then re-installed the ODAC components. Started the SQL Services back up and voila!