Re: [INTERFACES] outer join in PostgreSql
От | Patrick Welche |
---|---|
Тема | Re: [INTERFACES] outer join in PostgreSql |
Дата | |
Msg-id | 20010115213653.D8984@quartz.newn.cam.ac.uk обсуждение исходный текст |
Ответ на | outer join in PostgreSql ("Mauricio Hipp Werner" <mhipp@mail.pjud.cl>) |
Список | pgsql-sql |
On Mon, Jan 15, 2001 at 06:16:00PM -0400, Mauricio Hipp Werner wrote: > I need help, which is the symbol used in postgreSql to carry out the outer > join. > > in oracle the is used (+) > in sybase the is used * and > in postgreSql? I don't really understand your question, but from src/test/regress/sql/join.sql some examples of use are: -- -- Outer joins -- Note that OUTER is a noise word -- SELECT '' AS "xxx", * FROM J1_TBL LEFT OUTER JOIN J2_TBL USING (i); SELECT '' AS "xxx", * FROM J1_TBL LEFT JOIN J2_TBL USING (i); SELECT '' AS "xxx", * FROM J1_TBL RIGHT OUTER JOIN J2_TBL USING (i); SELECT '' AS "xxx", * FROM J1_TBL RIGHT JOIN J2_TBL USING (i); SELECT '' AS "xxx", * FROM J1_TBL FULL OUTER JOIN J2_TBL USING (i); SELECT '' AS "xxx", * FROM J1_TBL FULL JOIN J2_TBL USING (i); SELECT '' AS "xxx", * FROM J1_TBL LEFT JOIN J2_TBL USING (i) WHERE (k = 1); SELECT '' AS "xxx", * FROM J1_TBL LEFT JOIN J2_TBL USING (i) WHERE (i = 1); Cheers, Patrick
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