Re: [GENERAL] Tr: UNIQUE
От | José Soares |
---|---|
Тема | Re: [GENERAL] Tr: UNIQUE |
Дата | |
Msg-id | 37AB08CA.61CF998@sferacarta.com обсуждение исходный текст |
Ответ на | Tr: UNIQUE ("Stéphane FILLON" <fillons@offratel.nc>) |
Список | pgsql-general |
Try this: create table amount( id int4 constraint pk_amount primary key, fk_acount int4 not null, code char(3) not null, constraint unico unique (fk_acount, code) ); José Stéphane FILLON ha scritto: > -----Message d'origine----- > De : Stéphane FILLON <fillons@offratel.nc> > À : pgsql-sql@postgresql.org <pgsql-sql@postgresql.org>; > pgsql-novice@postgresql.org <pgsql-novice@postgresql.org> > Date : dimanche 1 août 1999 09:12 > Objet : Tr: UNIQUE > > >>Hi ! > >> > >>I have a table with a primary key id to have a unique tuple and > >> > >>I want to check that (fk_acount + code) is unique. > >> > >>I don't know how to create this CHECK CONSTRAINT > >> > >>create table amount( > >> id int4 constraint pk_amount primary key, > >> fk_acount int4 not null, > >> code char(3) not null > >>); > >> > >>Thanks in advance. > >> > >>Stephane > >> > >> > >
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