Re: simple division

[Ron <ronljohnsonjr@xxxxxxxxx>]

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, and most people think of me as a person with a reasonably good memory. There is no obvious place in the documentation to look this up.
>
>
> On 12/4/18, 2:45 PM, "David G. Johnston" <david.g.johnston@xxxxxxxxx> wrote:
>
>      On Tue, Dec 4, 2018 at 1:38 PM Joshua D. Drake <jd@xxxxxxxxxxxxxxxxx> 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.
>      

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