database - How to assign values to store gender information? -


i'm creating application stores data users. wondering mapping of gender appropriate:

male - false; female - true

or

female - false; male - true

is there standard this?

i have seen bit (sql server) type being used genders, mentioned. places i've worked used char(1) column that, because thought someday might have store genders other male , female (i.e.: androginous/assexual, transexual (both male or female), hermaphrodite, unknown etc.). , knows? in case, both solutions work. i'm inclined bit solution may have better performance if scalability issue, though should matter huge databases.


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