Re: Data Types

ALT SHN <i.geografica@alt-shn.org> wrote:

> 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?

If i where you, maybe a text[]:

test=# create table Paleosites (species text[]);
CREATE TABLE
test=*# insert into Paleosites values (array['dinossauria','crocodilia','plantae']);
INSERT 0 1
test=*# select * from Paleosites;
             species
----------------------------------
 {dinossauria,crocodilia,plantae}
(1 Zeile)


Other solution: an extra table with a 1:m relationship.



Andreas
--
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