Re: can somebody execute this query on Oracle 11.2g and send result?
От | Pavel Stehule |
---|---|
Тема | Re: can somebody execute this query on Oracle 11.2g and send result? |
Дата | |
Msg-id | 162867791001282332t1227b2b8j9585a978862c974d@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: can somebody execute this query on Oracle 11.2g and send result? ("Jonah H. Harris" <jonah.harris@gmail.com>) |
Список | pgsql-hackers |
2010/1/29 Jonah H. Harris <jonah.harris@gmail.com>: > On Thu, Jan 28, 2010 at 9:10 AM, Pavel Stehule <pavel.stehule@gmail.com> > wrote: >> >> Hello, >> >> I can't to install Oracle, and need to know result. >> >> CREATE TABLE foo(a varchar(10), b varchar(10)); >> >> INSERT INTO foo VALUES('aaa',','); >> INSERT INTO foo VALUES('bbb',';'); >> INSERT INTO foo VALUES('ccc','+'); >> >> SELECT listagg(a,b) FROM foo; > > That's not how listagg works. > > The syntax is listagg(expression [, delimiter]) WITHIN GROUP (order by > clause) [OVER partition clause] > If a delimiter is defined, it must be a constant. > > Query: SELECT listagg(a, ',') WITHIN GROUP (ORDER BY a) FROM foo; > Result: aaa,bbb,ccc > > Query: SELECT listagg(a, ';') WITHIN GROUP (ORDER BY a) FROM foo; > Result: aaa;bbb;ccc > > Query: SELECT listagg(a, '+') WITHIN GROUP (ORDER BY a) FROM foo; > Result: aaa+bbb+ccc > Thank You very much Pavel > -- > Jonah H. Harris >
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