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Calculate new field in multiple tables based on an existing field that is not always present

JohnPapageorgiou

I have a set of file geodatabase tables that are an output form another process. From that output I created a subset based on part of the filename. I would like to merge all these files together but the merge tool will not work because in some tables a field with the common name "PROJECT" differs in length. My solution is to add a new field "Project1" and calculate it using the field calculator in arcpy. Unfortunately the problem I am having with this is that not all of the tables in my subset have the field "PROJECT" so the

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