sql almost working
Tim Chase
blinux.list at thechases.com
Tue May 6 23:07:50 UTC 2014
On May 6, 2014, Jude DaShiell wrote:
> [jude at athame ~]$ cat whealth.sql
> select round(avg(cys),1) as "Average Cystalic Pressure:" from
> health; select round(avg(dya),1) as "Average Dyastalic Pressure:"
> from health; select round(avg(pul),1) as "Average Pulse:" from
> health; select round(avg(sug),1) as "Average Sugar:" from health;
You can get the mode with a sub-query. Additionally, you
can condense that SQL by putting them all in one query:
select
round(avg(cys),1) as "Average Cystalic Pressure:",
(select cys
from health
group by cys
order by count(cys) desc, cys
limit 1) as "Mode Cystalic Pressure:",
round(avg(dya),1) as "Average Dyastalic Pressure:",
(select dya
from health
group by dya
order by count(dya) desc, dya
limit 1) as "Mode Dyastalic Pressure:",
round(avg(pul),1) as "Average Pulse:",
(select pul
from health
group by pul
order by count(pul) desc, pul
limit 1) as "Mode Pulse:",
round(avg(sug),1) as "Average Sugar:",
(select sugar
from health
group by sugar
order by count(sugar) desc, sugar
limit 1) as "Mode Sugar:"
from health;
which should reduce the number of headers to just one, rather than
one for each query.
I don't have your data to proof that query, but it should mostly be
what you want.
-tim
More information about the Blinux-list
mailing list