Dear experts,
since the date type char is not able to handle special character like "ç" without occupying more than one character* i figured out by abstracting from the documented date type nvarchar the non-documented** date type nchar which is able to do so.
My question is whether or not i can use this date type. Is there maybe a reason why it isn't documented (e.g. thou shall not use for reason xy 
).
Many thanks in advance for your responses,
Tobias Müller
* e.g. “Xxxxxxxçx Xxxxxxxx” occupies 19 characters instead of 18 if inserted into a char-col
** at least not documented in http://help.sap.com/hana/html/_csql_data_types.html