On Friday 8. December 2006 16:23, Raymond O'Donnell wrote: >Just wondering.....how do list member represent gender when storing >details of people in a database? > >I've done it two ways: > >* A bool column, with the understanding that true/false represents >one gender or the other. > >* Create a domain, something like: >CREATE DOMAIN gender_domain > AS character varying(7) > NOT NULL > CONSTRAINT gender_domain_check CHECK ((((VALUE)::text = >'male'::text) OR ((VALUE)::text = 'Female'::text))) > >I personally prefer the second, as it's self-documenting...is there >any other/better way of doing it? There's actually an ISO standard (ISO 5218) for representing gender with numeric values: 0 = Unknown, 1 = Male, 2 = Female, 9 = not specified (or N/A). -- Leif Biberg Kristensen | Registered Linux User #338009 http://solumslekt.org/ | Cruising with Gentoo/KDE
