Re: Data Types
От | Jasen Betts |
---|---|
Тема | Re: Data Types |
Дата | |
Msg-id | ib60sm$qdi$2@reversiblemaps.ath.cx обсуждение исходный текст |
Ответ на | Data Types (ALT SHN <i.geografica@alt-shn.org>) |
Список | pgsql-novice |
On 2010-11-05, ALT SHN <i.geografica@alt-shn.org> wrote: > --20cf30549a6f4e574504944fc733 > Content-Type: text/plain; charset=ISO-8859-1 > Content-Transfer-Encoding: quoted-printable > > Hello List, > > I have a column of a table of paleontological sites named "Paleosites" wich > has a column named "species". A paleosite can contain remais of one or more > animals. So in that column sometimes I have to put this: dinossauria > crocodilia plantae. This indicates that from a given paleosite were > retrieved the remais of 3 different species. > > Now my question is: wich data type should the column "Species" be? Text? > Varchar? For 3NF it should be in a separate table. Text and varchar are the same just varchar takes longer to type on the keyboard. text[] (array of text) is another option (but both above comments still apply). -- ɹǝpun uʍop ɯoɹɟ sƃuıʇǝǝɹ⅁
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