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Calculate Field Tool Does not Complete - Help

Question asked by ModernGIS on Apr 10, 2013
Latest reply on Apr 16, 2013 by mvolz47
I need help really bad. I have been looking through all of the Forum posts and and Help sections to try to figure out what is wrong with no luck. Here is what I am doing:
    I have a File Geodatabase (ArcMap 10.0) with a Feature Class (Service Location) which is the physical location of our electric meters. I have multiple fields that I need to update on a nightly basis. This data comes from our CIS system which holds account, customer and meter attribute information. I have a script to runs automatically every night that pulls an Oracle VW through an ODBC connection and brings it into my File Geodatabase as a Geodatabase Table. What I have to do is to update a specific field (Account Number) in the Feature Class with the same field in the table (ACCOUNTNUM)... Just an example. What I want to be able to do is to also have this script run automatically at night. I have around 9500 records in the feature class with about 15 different fields to do this to. The problem I am having is it takes up to 20 to 25 minutes for each field to update so at times - the script can take 8 to 9 hours to complete. From what I understand - this should take only a few minutes.... So what I am doing is not working.
I decided to go back to the "Drawing Board" to see if there is something I am missing with writing the code..... I decided to work with (1) field right now to see if I can make it work and get the update time down before I rewrite the rest of the code.

This is what I currently have and it does not seem to be working:

## Set the necessary product code import logging  # Import arcpy module import arcpy from arcpy import env   # if run in ArcGIS Desktop, show messages, also print to log def log(method, msg):     print msg     method(msg)  logging.basicConfig(         level=logging.INFO,         format='%(asctime)s %(levelname)-s %(message)s',         datefmt='%a, %d %b %Y %H:%M:%S',         filename='Test_Update.log',         filemode='w'         )  log(, "Updating Service Locations Feature Class Begins")  # Set environment settings env.workspace = "C:\\MEWCo GIS System\\Electric System\\MEWCo_Electric_Model-LOCAL.gdb"  # Set Local variables: inFeatures = "SERVICE_LOCATION"                         # Service Location Feature Class layerName = "SERVICE_LOCATION_LAYER"                    # Service Location Feature Layer fieldName1 = "SERVICE_ADDRESS" expression1 = "CIS_Account_Data.SERVICE_ADDRESS" joinField = "POLE_NUMBER" joinField2 = "MAPNO" joinTable = "CIS_Account_Data"  # Create a Feature Layer from Service_Location Feature Class log(, "Create Feature Layer for Service Location Feature Class") arcpy.MakeFeatureLayer_management(inFeatures, layerName)  # Join the feature layer to a table log(, "Join Table to Feature Layer Service Location") arcpy.AddJoin_management(layerName, joinField, joinTable, joinField2)      # Process: Calculate Field (Member Number) log(, "Update Member Number Field") arcpy.CalculateField_management(layerName, "SERVICE_LOCATION.MEMBER_NUMBER", '!MEMBERNO!', "PYTHON")  log(, "Complete")

I am not sure what is slowing this down. Am I looking at this process the wrong way?? Are there different tools that can be used to complete this mission??

Thank you for your help