问题
In a nvarchar(512) field if i store unicode chars like this:
UPDATE MYTABLE SET UNICODEFIELD = 'TﾚEﾎSￔTﾙ'
when i query it i get
T?E?S?T?
It looks like the "unusual" chars are not considered as unicode, i would expect the "?" behavior in case of varchar, while with nvarchar it should work fine, i am expecting
TﾚEﾎSￔTﾙ
as output, instead of
T?E?S?T?
Does anyone have an idea about this?
回答1:
Because you're using a varchar, not an nvarchar. 'TﾚEﾎSￔTﾙ' = 'T?E?S?T?' as characters like ﾚ can't be stored in a varchar.
Use a literal nvarchar:
UPDATE MYTABLE SET UNICODEFIELD = N'TﾚEﾎSￔTﾙ';
来源：https://stackoverflow.com/questions/57091882/sql-server-returns-question-mark-for-some-unicode-chars