-197 A QUALIFIED COLUMN NAME IS NOT ALLOWED IN THE ORDER BY CLAUSE WHEN A SET OPERATOR IS ALSO SPECIFIED

Explanation
  The ORDER BY clause of a fullselect
that includes a set operator, such as UNION, EXCEPT, or INTERSECT,
cannot have qualified column names.

System action
  The statement cannot be processed.

Programmer response
  Change the statement to
ensure that all column names in the ORDER BY clause are unqualified.

SQLSTATE
  42877