Re: Hierarchical queries
От | Paulo Rodrigues |
---|---|
Тема | Re: Hierarchical queries |
Дата | |
Msg-id | 3C445CEE.8040505@vianetworks.pt обсуждение исходный текст |
Ответ на | Hierarchical queries (Paulo Rodrigues <prodrigues@vianetworks.pt>) |
Список | pgsql-sql |
Hi Wei, An example would be a Bill of Materials; with Oracle I'd do select level, item_id, parent_id, quantity from boms start with parent_id='A' connect by prior parent_id=item_id; This is what I understand for a "tree-like" query. If that's the wrong name for it, it's my mistake, I'm sure. Thanks, Paulo Wei Weng wrote: > What is a "tree-like" queries? Or you mean a query returns you a hierarchy > structure? (Thus tree like) > > On Tue, 15 Jan 2002 13:39:11 +0000 > Paulo Rodrigues <prodrigues@vianetworks.pt> wrote: > > >>Hello all, >> >>how do you usually handle hierarchical (tree-like) queries? I'm sure >>someone else needed this already. >> >>Thanks in advance, >>Paulo >> >>-- >>Paulo Rodrigues >>Professional Services / MIS >>prodrigues@vianetworks.pt >> >>VIA NET.WORKS Portugal >>http://www.vianetworks.pt >>local touch global reach >>------------------------- >>http://security.vianetworks.pt/sig/ >> >> >>---------------------------(end of broadcast)--------------------------- >>TIP 4: Don't 'kill -9' the postmaster >> >> > > -- Paulo Rodrigues Professional Services / MIS prodrigues@vianetworks.pt VIA NET.WORKS Portugal http://www.vianetworks.pt local touch global reach ------------------------- Sabe quem tem acesso à rede da sua empresa? http://security.vianetworks.pt/sig/
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