Re: Crossed Reference Query
От | Dennis Gearon |
---|---|
Тема | Re: Crossed Reference Query |
Дата | |
Msg-id | 3F171C4B.9020909@cvc.net обсуждение исходный текст |
Ответ на | Crossed Reference Query ("Eduardo Mylonas - Externo" <emylonas@automat.com.br>) |
Список | pgsql-general |
ADODB library has a pivot table generating funciton. Eduardo Mylonas - Externo wrote: > > MS Access has a functionality which is a type of query called "Crossed > Reference Query" (At least, that's the lame translation i got to come up > with). > > The syntax is something like this: > TRANSFORM Max(Consulta1.nome) AS [O valor] > SELECT Consulta1.usuario_id, Max(Consulta1.nome) AS [Total de nome] > FROM Consulta1 > GROUP BY Consulta1.usuario_id > PIVOT Consulta1.textoitem; > > The query Consulta1 is: > SELECT sig_permissoes.usuario_id, sig_menudecontrole.textoitem, > sig_niveis.nome > FROM sig_niveis INNER JOIN (sig_menudecontrole INNER JOIN sig_permissoes ON > sig_menudecontrole.menu_id = sig_permissoes.menu_id) ON sig_niveis.nivel_id > = sig_permissoes.nivel_id > ORDER BY sig_permissoes.usuario_id, sig_menudecontrole.painel_id, > sig_menudecontrole.numeroitem; > > Well, i want to know whether is possible to do something like this over > PostgreSQL. If it's needed perl scripts or some other type of scripting, for > me that's ok. the thing is that i need to have that. > > Is it possible? > > Thanks to all. > > Eduardo Mylonas da Silva > Automat Eng. de Automação > Desenvolovimento > mailto: emylonas@automat.com.br > www.automat.com.br > > > ---------------------------(end of broadcast)--------------------------- > TIP 9: the planner will ignore your desire to choose an index scan if your > joining column's datatypes do not match >
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