Re: simple division
От | Ron |
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Тема | Re: simple division |
Дата | |
Msg-id | 640d078c-e132-3e51-a1bb-df0b29d8a09c@gmail.com обсуждение исходный текст |
Ответ на | Re: simple division (Martin Mueller <martinmueller@northwestern.edu>) |
Список | pgsql-general |
Use CAST() instead of ::. SELECT CAST(alldefects AS NUMEREIC(10,4))/wordcount; On 12/04/2018 02:57 PM, Martin Mueller wrote: > I didn't formulate my question properly, because the query went like > "select alldefects /wordcount" > where alldefects and wordcount are integers. But none of the different ways of putting the double colon seemed to work. > > The Postgres notation of this simple procedure is very unintuitive. I haven't been able to remember several times, andmost people think of me as a person with a reasonably good memory. There is no obvious place in the documentation to lookthis up. > > > On 12/4/18, 2:45 PM, "David G. Johnston" <david.g.johnston@gmail.com> wrote: > > On Tue, Dec 4, 2018 at 1:38 PM Joshua D. Drake <jd@commandprompt.com> wrote: > > I may be misunderstanding the question but: > Indeed... > > select cast(x/y as numeric(10,4)); > > Your answer is 2.0 instead of the correct 2.5 - you need to cast > before the division, not after. > > David J. > > -- Angular momentum makes the world go 'round.
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