Re: Join Advice and Assistance
От | Gary Chambers |
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Тема | Re: Join Advice and Assistance |
Дата | |
Msg-id | 302670f21002220751h6cc363fiad449314d961fcc0@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Join Advice and Assistance (Rob Sargent <robjsargent@gmail.com>) |
Ответы |
Re: Join Advice and Assistance
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Список | pgsql-sql |
Rob, Thanks for the reply... > If you want records for user without email addresses you will need an outer > join on user_emailaddrs > > /* untested */ > select u.userId, u.lname, u.lastname ,m.startdate, a.emailaddr > from users u > join usermetas m on u.userid = m.userid > left join user_emailaddrs a on m.userid = a.userid My question was related more toward eliminating the query returning a record for each record in the one-to-many table. I see now that I'm going to have to aggregate the e-mail addresses in order to return a single row. Thanks again. -- Gary Chambers /* Nothing fancy and nothing Microsoft! */
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