How do you update NULL values within mdb geodatabase table using ArcGIS Field Calculator (service pack 4) without changing other values to NULL? I've tried the suggestions on this previous question:
When I run the script it changes everything to NULL.
def RemoveNULL(x): if x is None: return '0'
before running script
1 23 NULL 5
after running script
NULL NULL NULL NULL
Can you not use python script on mdb table?