Teradata Database Japanese language facilities support ISO 8859-15 (Latin9) with the restriction that the code points 80-85 and the LETTER Z WITH CARON are not allowed.
The characters at 80-85 are in the C1 control region and are not considered to be essential. The character LETTER Z WITH CARON is part of the support for Finnish, but is not considered part of the Finnish alphabet and is rarely used even in Finland.
These restrictions are scheduled to be removed in a future release.