Re: Dreaming About Redesigning SQL
От | Christopher Browne |
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Тема | Re: Dreaming About Redesigning SQL |
Дата | |
Msg-id | bm59fh$issbt$1@ID-125932.news.uni-berlin.de обсуждение исходный текст |
Ответ на | Dreaming About Redesigning SQL (seunosewa@inaira.com (Seun Osewa)) |
Список | pgsql-hackers |
A long time ago, in a galaxy far, far away, dwolt@iserv.net (Dawn M. Wolthuis) wrote: > Good question. Although I would want to move away from relational > databases too, if there is an RDBMS and one wants to query it, what > would I aim for? If you look at XQuery, you will see an example of > what I would definitely NOT aim for. Although the user of such a > language might very well be a technical person, instead of starting > with mathematics (relational calculus, relational algebra) I would > suggest starting with language. The mathematics of language is more > complex than the mathematics of relations, particularly simple > relations (such as 1NF tables). No, that _very much_ gets things backwards. You need to have a clearly defined model of how the data is to be manipulated before it makes any sense to try to make up a language. -- output = reverse("moc.enworbbc" "@" "enworbbc") http://cbbrowne.com/info/rdbms.html To iterate is human; to recurse, divine.
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