Обсуждение: default for date/time types

hello,

if i were to setup a date or time type in my database, what would be a good
default value to use (an empty one, but not null)

thanks!

On Sun, 5 Mar 2000, Seth Banks wrote:

> if i were to setup a date or time type in my database, what would be a
> good default value to use (an empty one, but not null)

The way you're asking you probably do want to use NULL because there's no
such thing as an "empty date". NULL is supposed to fill exactly that gap.
However, if for some reason you really can't use NULL then consider
perhaps 'invalid' or '-infinity' but these are distinctly non-portable and
might not buy you much in terms of elegance. Implementor beware. :)

-- 
Peter Eisentraut                  Sernanders väg 10:115
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