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Calculate field based on another joined field fails

Question asked by Sunny.Fleming on Oct 31, 2018
Latest reply on Nov 15, 2018 by Sunny.Fleming

I'm working in ArcGIS Pro 2.2 and I have a feature class from a geodatabase called "Seating." There is an empty field called "TSP_UID." I have joined another table from my local drive to this table.

 

Next, I wanted to calculate the seating.TSP_UID from the joinedtable.TSP_UID. 

 

In ArcGIS Pro - calculate field fails and gives me a 999999 error. In ArcMap - it says calculate field is successful, but it doesn't actually alter any of the attributes. 

Here's the python snippet from ArcMap:

 

# Replace a layer/table view name with a path to a dataset (which can be a layer file) or create the layer/table view within the script
# The following inputs are layers or table views: "TDEC_GIS_TSP.Seating"
arcpy.CalculateField_management(in_table="TDEC_GIS_TSP.Seating", field="TDEC_GIS_TSP.Seating.TSP_UID", expression="(!TDEC_GIS_TSP_JoinedTable.TSP_UID!)", expression_type="PYTHON", code_block="")

UPDATE: So I closed everything out and opened ArcGIS Pro back up and MAGICALLY the field in question was suddenly populated?! So - now this is even more annoying because I can't figure out when this occurred or why it finally worked, and I've got a handful of other feature classes to do this with. Yayyyyyy. ESRI MAGIC.

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