Re: PostgreSQL in Comparison to mySQL
От | Vince Vielhaber |
---|---|
Тема | Re: PostgreSQL in Comparison to mySQL |
Дата | |
Msg-id | Pine.BSF.4.30.0105150557010.5548-100000@paprika.michvhf.com обсуждение исходный текст |
Ответ на | Re: PostgreSQL in Comparison to mySQL (GH <grasshacker@over-yonder.net>) |
Список | pgsql-general |
On Mon, 14 May 2001, GH wrote: > On Mon, May 14, 2001 at 02:07:03PM -0700, some SMTP stream spewed forth: > > Hi, > > > *snip* > > My questions revolve mostly among joined selects and auto_increment (serial > > in pg) syntaxes. > > > > Can joined selects in pg be accomplished the same way as in mySQL? > > ie- "select person_name, person_age from names, ages where names.id=4 and > > names.id=ages.person_id" > > Yes. > You can even do: > select person_name, person_age from names n, ages a where n.id='4' and > n.id=a.person_id > > BUT, you must single-quote attribute values, e.g. id, etc. I was under the impression id was a serial and therefore an int. You don't need to quote and int: asdf=# select person_name, person_age from names, ages where names.personid=3 and names.personid=ages.personid; person_name | person_age -------------+------------ ralph | 12 (1 row) Vince. -- ========================================================================== Vince Vielhaber -- KA8CSH email: vev@michvhf.com http://www.pop4.net 56K Nationwide Dialup from $16.00/mo at Pop4 Networking Online Campground Directory http://www.camping-usa.com Online Giftshop Superstore http://www.cloudninegifts.com ==========================================================================
В списке pgsql-general по дате отправления: