Nonstandard update of read-only cursor <str>

  Explanation:  In the ISO and ANSI standards for SQL, a cursor is
  read-only if it includes an ORDER BY clause.  Read-only cursors
  cannot be used in UPDATE or DELETE statements.

  User Action:  If it is important to have only standard features
  in your program, you should change the cursor to not include the
  ORDER by clause, or not use it in an UPDATE or DELETE statement.