The VARCHAR data type has NLS. The choice of character set affects the available character count or maximum length of the data column. The limits established above assume a single-byte character set. Using a multiple-byte character set lowers the maximum character count proportionally. For example, if all the characters in a character set take 3 bytes per character, the practical maximum is 10,660 (31,982 divided by 3). If, however, you are using a variable-width character set, you will be able to hold between 10,660 and 31,982 characters, depending on the actual mix of characters you use.