Nonprintable characters with NVARCHAR
An NVARCHAR value can include tabs, spaces, and nonprintable characters. Nonprintable NVARCHAR characters are entered, displayed, and treated in the same way as nonprintable VARCHAR characters.
Tip: The database server interprets the NULL character
(ASCII 0) as a C null terminator. In NVARCHAR data, the null terminator
acts as a string-terminator character.