Re: JOIN columns with no data
От | George Weaver |
---|---|
Тема | Re: JOIN columns with no data |
Дата | |
Msg-id | 000c01c4e7a3$57a58f90$6400a8c0@Dell4500 обсуждение исходный текст |
Ответ на | JOIN columns with no data ("Keith Worthington" <keithw@narrowpathinc.com>) |
Список | pgsql-novice |
Keith, The following should give you what you're looking for SELECT Table1.col1, Table1.col2, Table1.col3, Table2.col2 FROM Table1 LEFT JOIN Table2 WHERE Table1.col1 = Table2.col1; etc. George ----- Original Message ----- From: "Keith Worthington" <keithw@narrowpathinc.com> To: "PostgreSQL Novice" <pgsql-novice@postgresql.org> Sent: Tuesday, December 21, 2004 3:13 PM Subject: [NOVICE] JOIN columns with no data > Hi All, > > I am trying to create a fairly large join (7 tables) that needs to allow > NULL > in columns. > > Table 1 > 1 | A | 2 > 2 | B | 3 > > JOINed with > > Table 2 > 1 | note > > should output > 1 | A | 2 | note > 2 | B | 3 | > > Kind Regards, > Keith > > ______________________________________________ > 99main Internet Services http://www.99main.com > > > ---------------------------(end of broadcast)--------------------------- > TIP 7: don't forget to increase your free space map settings >
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