I'm creating a script where I'm trying to select all the null values based on a specific field. The feature is joined with another feature, thus altering the title of fields to be FeatureName_FieldName. I want to keep these titles as I will be exporting the table and if I set qualified field names to False, the fields won't be able to be properly interpreted.
mayDevice = mayFeature+"_"+"DEVICE_ID"
whereClause = mayDevice "IS NULL"
arcpy.SelectLayerByAttribute_management(mayFeature, "NEW_SELECTION", whereClause)
I don't know how to include a variable in an "is null" expression.