Joining 2 SQL queries into 1 result - mysql

Question

I have two SQL queries that I would like to join into one:
select d.full_month, COUNT(*) amount
from fact_ticket t
join dim_queue q on t.queue_id = q.queue_id
join vt_scopes s on t.scope_id = s.scope_id
join dim_date d on t.create_date_id = d.date_id
where q.name = 'Support'
and year(GETDATE()) = YEAR(t.create_date)
and s.statusname not in ('discarded', 'closed')
group by d.full_month
order by 1;
and
select d.full_month, COUNT(*) amount
from fact_ticket t
join dim_queue q on t.queue_id = q.queue_id
join vt_scopes s on t.scope_id = s.scope_id
join dim_date d on t.create_date_id = d.date_id
where q.name = 'Support'
and year(GETDATE()) = YEAR(t.create_date)
and s.statusname in ('closed')
group by d.full_month
order by 1;
Both gives me now a result with a date column and an amount column, but I would like to get everything in one query where I would get date, amount 1, amount 2.
Is there an easy to do this?

Answer 1

You can use below query-
SELECT d.full_month,
COUNT(IF(s.statusname NOT IN ('discarded', 'closed'),1,NULL)) amount1,
COUNT(IF(s.statusname IN ('closed'),1,NULL)) amount2
FROM fact_ticket t
JOIN dim_queue q ON t.queue_id = q.queue_id
JOIN vt_scopes s ON t.scope_id = s.scope_id
JOIN dim_date d ON t.create_date_id = d.date_id
WHERE q.name = 'Support'
AND YEAR(GETDATE()) = YEAR(t.create_date)
GROUP BY d.full_month
ORDER BY 1;
2nd Edition: Even you can get benefit of index if exist on create_date by below query-
SELECT d.full_month,
COUNT(IF(s.statusname NOT IN ('discarded', 'closed'),1,NULL)) amount1,
COUNT(IF(s.statusname IN ('closed'),1,NULL)) amount2
FROM fact_ticket t
JOIN dim_queue q ON t.queue_id = q.queue_id
JOIN vt_scopes s ON t.scope_id = s.scope_id
JOIN dim_date d ON t.create_date_id = d.date_id
WHERE q.name = 'Support'
AND t.create_date>= DATE_FORMAT(NOW(),'%Y-01-01 00:00:00') AND t.create_date <= DATE_FORMAT(NOW(),'%Y-12-31 23:59:59');
GROUP BY d.full_month
ORDER BY 1;

Answer 2

Another way using sum function
SELECT
d.full_month,
SUM(s.statusname NOT IN ('discarded', 'closed')) amount,
SUM(s.statusname = 'closed') amount_closed
FROM
fact_ticket t
JOIN dim_queue q
ON t.queue_id = q.queue_id
JOIN vt_scopes s
ON t.scope_id = s.scope_id
JOIN dim_date d
ON t.create_date_id = d.date_id
WHERE q.name = 'Support'
AND YEAR(GETDATE ()) = YEAR(t.create_date)
GROUP BY d.full_month
ORDER BY 1 ;