I think it was the original designer who had the blonde moment. Or senior moment.

Code:
SQL> desc vehiclemodel
Name Null? Type
------------------------------- -------- ----
...
ABICD NUMBER(38)
...

SQL> desc mktlistitem
Name Null? Type
------------------------------- -------- ----
...
ABICD VARCHAR2(16)
...
What's going on with this abicd column?