Re: SOLVED: Emulating 'connect by prior' using stored proc
От | Merrall, Graeme |
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Тема | Re: SOLVED: Emulating 'connect by prior' using stored proc |
Дата | |
Msg-id | B7AD8B4B4A337741B62E633B4827ADD932D5CD@svrexc02.aolau.ops.au.office.aol.com обсуждение исходный текст |
Ответ на | SOLVED: Emulating 'connect by prior' using stored proc ("Merrall, Graeme" <gmerrall@team.aol7.com.au>) |
Список | pgsql-sql |
> I have one question because I'm not clear about > something with your > implementation (a good one too by the looks of it -- thanks > for sharing > this information); if I start my query from an item at level > 5, will the > level be reflected as such, or will it dynamically start at 1? > > As I understand it, in Oracle the level would begin at > 1 in this case. > It's the same in this case. The tree building stuff only ever looks down so the level returned in the query results will start at 1 no matter where you enter your tree. In our case we could enter the tree at 'node' 100 and get the tree below that but the function will start at 1 because we only interested in the data below not the entry point and not where in the tree we entered. As in the solution if you really want to start it at 5 then set that as the value of your second parameter. Cheers,Graeme
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