Oracle Error Message
ORA-23368: name string cannot be null or the empty string
Reason for the Error
Argument “sname1,” “sname2,” “oname1,” “oname2,” “missing_rows_sname,” “missing_rows_oname1,” “missing_rows_oname2” to “differences()” or “rectify()” cannot be NULL or ” (empty string).
Solution
Change argument to non-null or non-empty string.