It's hard to easily go over 400+ geodatabase domains using ArcCatalog. This script has methods to: exports all domains and their values in alphabetical order to text file for easier browsing; find a specific domain; print domain usage for all fields in a given dataset; . Tags: ArcGIS arcpy GIS esri

view_arcgis_domains.py

import arcpy

def export_domains_to_txt():
  lines = []
  for domain in arcpy.da.ListDomains(arcpy.env.workspace):
      if domain.codedValues:
          values = ','.join(['%s:%s'%(key, domain.codedValues[key]) for key in sorted(domain.codedValues.keys())])
      else:
          values = domain.range
      lines.append('%s : %s'%(domain.name, values))
  
  with file(r'domains.txt','w') as f:
      f.write('\n'.join(sorted(lines)))
      
def get_domain(name):
    domains = arcpy.da.ListDomains(arcpy.env.workspace)
    for domain in domains:
        if name.lower() == domain.name.lower():
            return domain
    return None
    
def print_domain_usage(feature_dataset=''):
  for fc in arcpy.ListFeatureClasses(feature_dataset=feature_dataset):
      print fc
      for field in arcpy.ListFields(fc):
          if field.domain:
              print '\t',field.name, field.domain