Cannot see user Oracle database using OLE DB, but can see system tables

I am trying to connect to a Oracle 12c database from Excel 2016 using 64-bit ODAC 12,2c Release 1 for windows x64. I go to get data and choose Oracle Provider for OLE DB, in Data Link Properties page I fill in details, with the user database specified, and test the connection, which is a success. Instead of showing the user database the system database is shown (Schema tables like OPS$Username, SYS…). Any idea why I cannot see the user database using OLE DB but I can using ODBC with MS Query?

Regards
Danny

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emilyhua-msft · Apr 04 at 11:53 AM

Hi @DannyGrieve-4053
Welcome to Q&A forum ~
But the tag "office-excel-itpro" focuses more on general issues of Excel app, and I do not have the Oracle database for a test. Thanks for your understanding.
Personally, I suggest you refer to "Connecting to Oracle with Microsoft Products" and "How to Install Oracle ODBC Driver on Windows 10", check whether they are helpful to you.
(Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.)