Re: inserting columns with values from a different table
От | Stephan Szabo |
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Тема | Re: inserting columns with values from a different table |
Дата | |
Msg-id | Pine.BSF.4.21.0107082338230.86282-100000@megazone23.bigpanda.com обсуждение исходный текст |
Ответ на | inserting columns with values from a different table (Alexander Turchin <aturchin@chip.org>) |
Список | pgsql-general |
On Sun, 8 Jul 2001, Alexander Turchin wrote: > Hello all, > > This may be (hopefully) a very basic question, but I (admittedly, a > pgsql newbie) cannot seem to be able to find an answer to it :( > > I have in my database tables, say A, B, and C, all of them referring to > the same objects (e.g. table A contains customer's name, table B his/her > purchases, and table C his/her address). I want to create a "master" > table D whose rows would have some values from table A, some from B, and > some from C (e.g. name, last purchase, and address). I know I can do an > INSERT with SELECT - but that will only allow me to insert values from > one table, not from all three (or more). Is there any way to do this in > PostgreSQL? Although you probably really want a view, insert...select should take values from multiple tables if the select has multiple tables in its from. insert into table select foo.col1, foo2.col2 from foo,foo2; seems to work for me.
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