ORA-20000: ORU-10028: line length overflow, limit of 255 bytes per line

[Highlander]

If you really need it try this:

DECLARE
VAR NUMBER := 1;
BEGIN
WHILE VAR <= LENGTH(RESULTS) LOOP
DBMS_OUTPUT.PUT_LINE(SUBSTR(RESULTS, I, 200));
I = I + 200;
END LOOP;
END;