Explanation: An unqualified column name is. ambiguous if more than one table or view identified in. the FROM clause has a column with that name, or if. more than one column of a nested table expression has. that name.
The exact cause of clubfoot is unknown, but doctors agree that a family history of clubfoot increases the likelihood that a child will be born with the condition. In addition, mothers who smoke and drink during pregnancy are more likely to give birth to a child with a clubfoot or clubfeet.
Club foot. For other uses, see Club foot (disambiguation). Club foot or clubfoot, is a term for the medical condition congenital talipes equinovarus (CTEV). It is a congenital deformity involving one foot or both. The affected foot appears to have been rotated internally at the ankle.