Re: Join Advice and Assistance
От | Rob Sargent |
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Тема | Re: Join Advice and Assistance |
Дата | |
Msg-id | 4B82B960.3060901@gmail.com обсуждение исходный текст |
Ответ на | Re: Join Advice and Assistance (Gary Chambers <gwchamb@gmail.com>) |
Ответы |
Re: Join Advice and Assistance
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Список | pgsql-sql |
My mistake. Should answer these things late at night. I think you will find that arrays will be your friend[s] On 02/22/2010 08:51 AM, Gary Chambers wrote: > 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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