DesignID Index

To maximize performance, you will want to add indices to the DesignID field of all feature and object classes that participate in a design. You will also need to update your Adds tables if working with a versioned geodatabase. You can run the following Python script to programmatically create the necessary indices:  

import arcpy
arcpy.env.workspace = r"c:\location_of_your_database\database_name.gdb"
For a versioned database, point to the .sde file in your C:\Users\[username]\AppData\Roaming\ESRI\Desktop10.1\ArcCatalog directory. Be sure to have that connection use saved credentials. See for an example.
for dataset in arcpy.ListDatasets():
    for fc in arcpy.ListFeatureClasses(feature_dataset=dataset):
            arcpy.AddIndex_management(dataset + "/" + fc, "DesignID", "DesignID")
        except RuntimeError:
            print("Skipping feature class " + fc + " in dataset " + dataset)
for table in arcpy.ListTables():
        arcpy.AddIndex_management(table, "DesignID", "DesignID")
        print("Skipping table " + table)    except RuntimeError:

Running the Script in ArcCatalog

  1. Change the value of arcpy.env.workspace to your SDE connection or personal geodatabase.
  2. Start ArcCatalog.
  3. In ArcCatalog, select Geoprocessing > Results to open the Results pane. This pane will show the actions the script makes.
  4. Select Geoprocessing > Python to open the Python window.
  5. Copy and paste the preceding code into the Python window.
  6. Hit Enter. The script will add the indices to the necassary tables.
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