Subject Charsets
Author Aldo Caruso

Given a populated database with default character set = None.
Some fields have character set = None while others have character
set = ISO8859_1

1) Which is the best way to modify those field definitions which
have character set = None to character set = ISO8859_1 (there are char,
varchar as well as blob type text fields) without losing information ?

2) Can the default character set be changed ? In that case, does it
affect current fields that have character set = None or it only affects
the character set of future fields definitions ?

Thanks in advance,