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mariwan avatar image
mariwan asked

What are the differences between nchar and char?

What's the difference between nchar and char?

sql-server-2005unicode
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graz avatar image
graz answered

CHAR uses one byte to store each character and NCHAR uses two bytes to store each character.

CHAR uses ASCII to represent its characters and is commonly used for English applications. ASCII also supports a very small set of non-Enlish characters. NCHAR uses UNICODE to represent its characters using two bytes each. UNICODE is commonly used to non-Enlish text.

Knowing this NCHAR takes twice as much storage space as CHAR on a per-letter basis. However if you need international characters NCHAR is probably your only choice.

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Håkan Winther avatar image
Håkan Winther answered

nchar is unicode while char is not

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Madhivanan avatar image
Madhivanan answered
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