Question Re: Datasphere data flow null value in target table in Technology Q&A

Datasphere data flow null value in target table

jeanramon — Thu, 25 Jun 2026 11:50:57 GMT

I created a data flow to improve data persistence. It goes from Graphical View -> Data Flow (scheduled to run every 20mins) -> Local Table -> Analytic Model.

This works fine but somehow there is a column that does not receive any values (just NULLs). It's a date column. It is mapped correctly. It is labeled as date on both sides. When I data preview in the data flow, the source shows the values for that column but the target just shows NULLs.

Any ideas what could be wrong or where to fix it?

Re: Datasphere data flow null value in target table

sravan_aleshwaram — Thu, 25 Jun 2026 12:56:49 GMT

Hello @jeanramon

Likely date format/type mismatch in Data Flow
Check Source vs Target datatype (DATE vs TIMESTAMP)
Add conversion function (e.g., TO_DATE() or explicit cast)
Also verify mapping + null handling rule

Thanks,
Sravan

Re: Datasphere data flow null value in target table

jeanramon — Thu, 25 Jun 2026 13:09:13 GMT

Hello Sravan, there is no format mismatch as both sides are labeled as dates. From the graphical view until the local table, the data type stays the same. There are no conversion functions anywhere. Also values are not null in the source so there is no null handling rule involved.

Re: Datasphere data flow null value in target table

Snehi_Kaushik — Mon, 29 Jun 2026 06:38:51 GMT

Hey, is the mapping in Dataflow correctly done? Maybe the mapping got removed from the dataflow. I haven't faced such issues with the dataflow to table data persistence. This could be a mapping issue

Re: Datasphere data flow null value in target table

Martin_Kuma — Wed, 29 Jul 2026 15:27:56 GMT

Re-create the Dataflow. This happens in DSP. The object deployment does not work 100%. Happened in DWC already.

I had an issue with AMs calculated measures. Lost half a day before I just copied the AM, re-deployed it and all was good.