Re: [SQL] How to set up a simple relational database
| От | Moray McConnachie |
|---|---|
| Тема | Re: [SQL] How to set up a simple relational database |
| Дата | |
| Msg-id | 00da01bf7869$57d32da0$760e01a3@oucs.ox.ac.uk обсуждение исходный текст |
| Ответ на | How to set up a simple relational database ("James Macken" <jmac@nemesis.com.au>) |
| Ответы |
Re: [SQL] How to set up a simple relational database
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| Список | pgsql-sql |
> create table staff (name text, packageid int); > create table package (id int, amount text); > SELECT * from staff, package where staff.packageid=package.id; But that omits the "establish the relationship part", by which I suspect James means "ensure foreign key integrity". I must I admit I would like to see a simple exposition of that (using the refint package, presumably) for this example - or is it not worth it if 7.0 is bringing native foreign key integrity checks? > James Macken wrote: > > > > Can someone demonstrate for me how to set up a simple relational database > > using the psql interactive prompt and two tables.
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