Re: simple join problem
| От | Josh Berkus |
|---|---|
| Тема | Re: simple join problem |
| Дата | |
| Msg-id | 200302191249.26342.josh@agliodbs.com обсуждение |
| Ответ на | simple join problem ("Matthew Nuzum" <cobalt@bearfruit.org>) |
| Ответы |
Re: simple join problem
|
| Список | pgsql-sql |
Matthew, > Can anyone demonstrate the correct syntax for joining several tables in this > way? Actually, there's several possible answers to your problem. Here's one: > > Here's my view definition: > SELECT > users.uid, users.loginid, users."password", users.title, > users.firstname, users.middlename, users.lastname, users.suffix, > users.organization, users.job_title, users_address.address1, > users_address.address2, users_address.address3, users_address.city, > users_address.state, users_address.zip, users_address.country, > users_email.email, users_phone.phone > FROM (((users > LEFT JOIN users_address ON ((users.uid = users_address.uid AND users_address.primary = TRUE))) > LEFT JOIN users_email ON ((users.uid = users_email.uid and users_email.primary = TRUE))) > LEFT JOIN users_phone ON ((users.uid = users_phone.uid and users_phone.primary = TRUE))) ; It's a neat trick that join conditions can be *any* expression that evaluates to a boolean value. -- -Josh BerkusAglio Database SolutionsSan Francisco
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