Add a field containing a unique value for each record

Summary

Steps to add a unique values field to a table.

Procedure

1. Click Table > Start Editing.
   
   

   Note:
   ArcView cannot edit Delimited Text tables. You must convert Delimited Text tables to the dBase or INFO format. See Related Information below. 

   
   
2. Click Edit > Add Field.
3. Type Unique_ID in the Name text box on the Field Definition dialog box.
4. Select Number under the Type dropdown list.
5. Type 10 in the Width text box.
6. Type 0 (zero) in the Decimal Places text box.
7. Click OK.
8. Click Field > Calculate.
9. Type rec in the large text box at the bottom of the Field Calculator.
   

   Field Calculator

   
   
   
10. Click OK.
11. Click Table > Stop Editing.
12. Click Yes when asked to save edits.