I'm working on writing a script that will calculate facility ID's for feature classes in a feature dataset. Is there a way to do this without making feature layers and doing select/field calculate operations on all of them?
Basically, I'm wanting to iterate through the feature dataset and create a list of feature classes that can then have the field calc ran on each. The problem is that each feature class has a different expression for field calculation, and I need to select only null values, and the select layer by attribute function requires a feature layer.