select query output not as expected - sql

Question

i need one single query which will give result like the one i give below
createddate recordcount acceptdate submitdate createddate
27-MAR-16 24 36 11
28-MAR-16 79 207 58
for reference i am providing some queries which i want to merge into one single query
select trim(date_created) createddate,count(*) recordcount
from man
where status IN ('CREATED')and date_created>sysdate-15
group by trim(date_created) ORDER BY TO_DATE(createddate,'DD/MM/YYYY');
this query will result like the following.
createddate recordcount
27-MAR-16 11
28-MAR-16 58
the second query
select trim(DATE_SUB) submitdate,count(*) recordcount
from man
where status IN ('SUBMITTED')and DATE_SUB>sysdate-15
group by trim(date_sub) ORDER BY TO_DATE(submitdate,'DD/MM/YYYY');
result of this query is like
submitdate recordcount
27-MAR-16 36
28-MAR-16 207
and the third query is like -
select trim(DATE_PUB) acceptdate,count(*) recordcount
from man
where status IN ('ACCEPTED')and DATE_PUB>sysdate-15
group by trim(DATE_PUB) ORDER BY TO_DATE(acceptdate,'DD/MM/YYYY');
acceptdate recordcount
27-MAR-16 24
28-MAR-16 79
how can i merger these three query so that i can get count for all in single query?which will give me result like
createddate recordcount acceptdate submitdate createddate
27-MAR-16 24 36 11
28-MAR-16 79 207 58

Answer 1

Your first query where clause has date but second query where clause has DATE_P.
Try like this
SELECT Trim(date) createddate,
COUNT(*) recordcount,
SUM(case when status = 'A' then 1 else 0 end) as a,
SUM(case when status = 'S' then 1 else 0 end) as s,
SUM(case when status = 'C' then 1 else 0 end) as c,
SUM(case when status = 'R' then 1 else 0 end) as r
FROM man
WHERE status IN ('A','S','C','R')and date >sysdate-15
GROUP BY trim(date) ORDER BY createddate;

Answer 2

You seem to want to get counts for each status type, for each day. The first step is generate all the dates you're interested in, which you can do with:
select trunc(sysdate) + 1 - level as dt
from dual
connect by level <= 15;
You can then (outer) join to your actual table where any of the three date columns match a generated date, and expand your case conditions to check which one you're looking at:
with t as (
select trunc(sysdate) + 1 - level as dt
from dual
connect by level <= 15
)
select t.dt,
count(*) as recordcount,
count(case when status = 'ACCEPTED' and trunc(m.date_pub) = t.dt
then 1 end) as acceptdate,
count(case when status = 'SUBMITTED' and trunc(m.date_sub) = t.dt
then 1 end) as submitdate,
count(case when status = 'CREATED' and trunc(m.date_created) = t.dt
then 1 end) as createddate
from t
left join man m
on (m.date_pub >= t.dt and m.date_pub < t.dt + 1)
or (m.date_sub >= t.dt and m.date_sub < t.dt + 1)
or (m.date_created >= t.dt and m.date_created < t.dt + 1)
group by t.dt
order by t.dt;
I've used range checks for the join conditions - it isn't clear if all your date columns are set at midnight, but it's safer to assume they might have other times and you cant everything from the matching day.
Each of the three count results is now only of those rows which match the status and where the specific date column matches, which I think is what you want. I've used trunc() here instead of a range comparison, as it doesn't have the potential performance penalty you can see in the where clause (from it potentially stopping an index being used).
This may throw out your recordcount though, depending on your actual data, as that will include rows that now might not match any of the case conditions. You can repeat the case conditions, or use an inline view to calculate the total of the three individual counts, depending on what you want it to include and what will be the easiest for you to maintain. If those are the only three statuses in your table then it may be OK with count(*) but check it gets the value you expect.