| From: | Thom Brown <thom(at)linux(dot)com> |
|---|---|
| To: | Mike Frost <m_frost2010(at)hotmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "pgsql-novice(at)postgresql(dot)org" <pgsql-novice(at)postgresql(dot)org> |
| Subject: | Re: Changing Data Types |
| Date: | 2015-09-07 10:27:46 |
| Message-ID: | CAA-aLv4Os-vdE_xmrTAJFXqVwqfeeOJHz1QrK33VjU-T9f8ZGA@mail.gmail.com |
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| Lists: | pgsql-novice |
On 7 September 2015 at 11:20, Mike Frost <m_frost2010(at)hotmail(dot)com> wrote:
> Hi All,
>
> This REALLY is a novice question
>
> I'm writing a simple query where i need to return [Field A]/[Field B] so
> i can express [Field A] as a percentage
>
> Both of these fields are BigInts, so i always get 0
>
> What do i need to do to the data types in my query to enable decimal
> places?
>
You can cast at least one of them to numeric:
postgres=# SELECT 7::int / 10::int;
?column?
----------
0
(1 row)
postgres=# SELECT 7::numeric / 10::int;
?column?
------------------------
0.70000000000000000000
(1 row)
Thom
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