Re: Hierarchical queries

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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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