I've done this 100s of times and I can't understand why it won't work!
I'm trying to copy the first 8 digits of from a HUC 12 (Hydrologic Unit Code) to a new field, which represents a larger watershed HUC 8.
- WDB_HUC12 Text, length 14
HUC8 Text, length 8
Python Code: !WDB_HUC12![:7]
- VBScript : Left([WDB_HUC12], 8)
No error message, but the field remains empty.