Re: [SQL] Order by
От | Herouth Maoz |
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Тема | Re: [SQL] Order by |
Дата | |
Msg-id | l03130302b37aaa3d3da3@[147.233.159.109] обсуждение исходный текст |
Ответ на | Order by ("Michael Yeung" <michaely@alphanet.net.au>) |
Ответы |
Re: [SQL] Order by
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Список | pgsql-sql |
At 03:48 +0300 on 02/06/1999, Michael Yeung wrote: > Hi all, > > Is anyone know that if we allow order-by clause in the view structure. > If not, how can we take the ordering of the UNION ALL in 2 different bags ? Correct me if I'm wrong, but ORDER BY shoud not be part of a view, in the same way it is not a part of a table. A table is defined as an unordered collection of tuples. In any given query, you can define the order of the tuples returned. But the table itself is not ordered. A view should look to the user just like a table. The order of the tuples is part of the query, not part of the table, and not part of the view. Herouth -- Herouth Maoz, Internet developer. Open University of Israel - Telem project http://telem.openu.ac.il/~herutma
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