Forum Discussion
Nullable object must have a value.
That's a rather funny error message. If you have a Pro license you can open a Pro ticket at https://admin.powerplatform.microsoft.com/newsupportticket/powerbi
Otherwise you can raise an issue at https://community.fabric.microsoft.com/t5/Issues/idb-p/Issues .This solved my issue:
While connecting to the Oracle database, a few options are checked in by default. By un-checking the option: "Include relationship columns". The issue is solved.
P.S. This post explains that there is a performance improvement when we un-select the "include relationship columns".
Overhead of getting relationship columns in Power BI DirectQuery mode (crossjoin.co.uk)
Please let me know what the outcome is. Did they acknowledge the irony?
This solved my issue:
While connecting to the Oracle database, a few options are checked in by default. By un-checking the option: "Include relationship columns". The issue is solved.
P.S. This post explains that there is a performance improvement when we un-select the "include relationship columns".
Overhead of getting relationship columns in Power BI DirectQuery mode (crossjoin.co.uk)