Re: Male/female
От | John Meyer |
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Тема | Re: Male/female |
Дата | |
Msg-id | 45798547.3050806@gmail.com обсуждение исходный текст |
Ответ на | Male/female ("Raymond O'Donnell" <rod@iol.ie>) |
Ответы |
Re: Male/female
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Список | pgsql-general |
Second method might be better. Of course, you could also do a one chracter gender "M/F" if you want to save space. 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? > > --Ray. > > > ---------------------------------------------------------------------- > > Raymond O'Donnell > Director of Music, Galway Cathedral, Galway, Ireland > rod@iol.ie > ---------------------------------------------------------------------- > > > > ---------------------------(end of broadcast)--------------------------- > TIP 3: Have you checked our extensive FAQ? > > http://www.postgresql.org/docs/faq >
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