Re: referential integrity on existing table - Mailing list pgsql-general

On Fri, Dec 07, 2001 at 11:00:22AM +1100, Adam Fisher wrote:
> My question is, is it possible to create a referential integrity constraint
> on an exisiting, already populated, table??

Yes, cf:

ALTER TABLE table
    ADD table constraint definition

eg:

alter table "tblAddress"
  add constraint addfk
  foreign key("PersonID") references "tblPerson"("ID") match full;

Cheers,

Patrick