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OCI Data Integration - Filter using row_number() over in Data Flow

Accepted answer
edited Dec 13, 2022 4:17AM in Data Integration 2 comments

I'm hoping this is something obvious that I'm overlooking. What I'm trying to achieve is filtering a data source (ADW table) by partition and only keeping the top row for each one.

So far I have added the data source, created a filter and used the analytic function "row_number() over(..." with a filter condition of that = 1. However this throws an error when running stating "ORA-30483: window functions are not allowed here".

This is easily achieved using a cte query in sql, but I'm struggling to get it working the same way in OCI Data Integration.

Is anyone able to point me in the right direction?

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