Re: Two joins on same foreign key
От | elein |
---|---|
Тема | Re: Two joins on same foreign key |
Дата | |
Msg-id | 20040131110937.W14914@cookie.varlena.com обсуждение исходный текст |
Ответ на | Two joins on same foreign key (Anony Mous <a.mous@shaw.ca>) |
Ответы |
Re: Two joins on same foreign key
Re: Two joins on same foreign key |
Список | pgsql-general |
PostgreSQL General Bits Issue #56 has an article on Join Basics which also has an example of multiple table joins. http://cookie.varlena.com/varlena/GeneralBits/56.php --elein elein@varlena.com On Fri, Jan 30, 2004 at 03:03:35PM -0700, Anony Mous wrote: > Hi, > > > > I??m fairly new to this database, and have read much discussion on > sub-queries. I??ve seen that they can be great for some queries, and downright > slow for others. I have a table with two foreign keys referencing another > table, like: > > > > Table #1 > > employee_id (pk) > > employee_name > > > > Table #2 > > teamleader_employee_id > > backup_employee_id > > > > both fields in table 2 need to do a lookup in table 1 to get the name of the > actual employee. Do I need to use nested queries to accomplish this? Any help > is greatly appreciated! > > > > -AM >
В списке pgsql-general по дате отправления: