Problem with PL-SQL

I would like to know, how can I return a VARCHAR(20) type in PL-SQL function. I can't write this
CREATE OR REPLACE FUNCTION TEST(VALUE IN NUMBER) RETURN VARCHAR(20) IS BEGIN
  RETURN('20 CHARACTERS???');
END; Must I declare a Subtype or other. Can you send me any samples of code ?

Thanks in advance.

Regard

Maciek Received on Mon Jun 07 1999 - 02:22:20 CDT