Oracle Error ORA-26754: cannot specify both one-to-one transformation function string and one-to-many transformation function string

Oracle Error Message

ORA-26754: cannot specify both one-to-one transformation function string and one-to-many transformation function string

Reason for the Error

Both a one-to-one transformation function and a one-to-many transformation function were specified for a rule.

Solution

Remove either the one-to-one transformation function, or the one-to-many transformation function.