IV. a. Create a BlockID Field
             Estimated time:
             3 minutes
Adding a new field to the Clipped Census Tract Layer, and populating it with FIDs. This layer is necessary because later tools will combine different layers, and this field will allow the layers to be separated later on, without affecting what was done while the layers were combined.
In this exercise, you will:
  • Use the Add Field option
  • Use the Field Calculator option


                                                   Start VideoDemo

Text Version:

    1. Right Click on the Census_Clip layer

    2. Click on Open Attribute Table

    3. Click Options -> Add Field

    4. Name the new Field BlockID

    5. Choose Double as the type

    6. Have the Precision be 18 and the scale be 3

    7. Click Ok

    8. Right Click in the BlockID title -> Field Calculator -> Yes

    9. In the text box set the Field equal to FID -> Ok -> Close