Subject Re[2]: [firebird-support] Calcurate row size
Author Helen Borrie
At 04:31 PM 13/07/2004 +0900, you wrote:
>Thank you very much Helen,
>Just one more question.
>One varchar column -- which has NULL value -- spends only 2 bytes in that row,
>Is this correct ?

No, NULL does not occupy any space. An empty varchar will occupy 2 bytes,
but the "empty string" has a value, and is not the same as NULL.