How to unify two SQL queries - mysql

Question

I have two SQL queries, both of them are working separately, but when I try to unify hem, I have only problems
Query 1 :
SELECT Day( funct_consumatori.timestamp ) AS numar_zi, ROUND( SUM( funct_consumatori.timp_functionare ) /3600 ) AS ore_functionare, ROUND( ROUND( SUM( funct_consumatori.timp_functionare ) /3600 ) * consumatori.kwh, 3 ) AS consum, ROUND( ROUND( ROUND( SUM( funct_consumatori.timp_functionare ) /3600 ) * consumatori.kwh, 3 ) * pret_energie.pret, 2 ) AS estimare
FROM funct_consumatori
INNER JOIN consumatori ON consumatori.id = funct_consumatori.consumator
INNER JOIN pret_energie ON pret_energie.id =1
WHERE Year( funct_consumatori.timestamp ) = Year(
CURRENT_TIMESTAMP )
AND Month( funct_consumatori.timestamp ) = Month(
CURRENT_TIMESTAMP )
GROUP BY numar_zi DESC
Query 2:
SELECT Day( ambienta.timestamp ) AS numar_zi, TRUNCATE( AVG( temperatura ) , 1 ) AS temp_med, MIN( temperatura ) AS temp_min, MAX( temperatura ) AS temp_max, TRUNCATE( AVG( umiditate ) , 1 ) AS umid_medie
FROM ambienta
INNER JOIN consumatori AS c2 ON c2.id = '1'
INNER JOIN pret_energie AS pe ON pe.id = '1'
WHERE Year( ambienta.timestamp ) = Year(
CURRENT_TIMESTAMP )
AND Month( ambienta.timestamp ) = Month(
CURRENT_TIMESTAMP )
GROUP BY numar_zi DESC
How can I unify them based on numar_zi(INNER one)?

Answer 1

I don't know your table and data but following SQL might work
select q1.numar_zi
,q1.ore_functionare
,q1.consum
,q1.estimare
-- value of q2 start
,q2.numar_zi
,q2.temp_med
,q2.temp_min
,q2.temp_max
,q2.umid_medie
from
(
SELECT Day( funct_consumatori.timestamp ) AS numar_zi
, ROUND( SUM( funct_consumatori.timp_functionare ) /3600 ) AS ore_functionare
, ROUND( ROUND( SUM( funct_consumatori.timp_functionare ) /3600 ) * consumatori.kwh, 3 ) AS consum
, ROUND( ROUND( ROUND( SUM( funct_consumatori.timp_functionare ) /3600 ) * consumatori.kwh, 3 ) * pret_energie.pret, 2 ) AS estimare
FROM funct_consumatori
INNER JOIN consumatori ON consumatori.id = funct_consumatori.consumator
INNER JOIN pret_energie ON pret_energie.id =1
WHERE Year( funct_consumatori.timestamp ) = Year(
CURRENT_TIMESTAMP )
AND Month( funct_consumatori.timestamp ) = Month(
CURRENT_TIMESTAMP )
GROUP BY numar_zi DESC
) q1
INNER JOIN
(
SELECT Day( ambienta.timestamp ) AS numar_zi
, TRUNCATE( AVG( temperatura ) , 1 ) AS temp_med
, MIN( temperatura ) AS temp_min
, MAX( temperatura ) AS temp_max
, TRUNCATE( AVG( umiditate ) , 1 ) AS umid_medie
FROM ambienta
INNER JOIN consumatori AS c2 ON c2.id = '1'
INNER JOIN pret_energie AS pe ON pe.id = '1'
WHERE Year( ambienta.timestamp ) = Year(
CURRENT_TIMESTAMP )
AND Month( ambienta.timestamp ) = Month(
CURRENT_TIMESTAMP )
GROUP BY numar_zi DESC
) q2
on
q1.numar_zi = q2.numar_zi
Please make the change according to your RDMS(if necessary), but remember if you want to join two query use the following query
select t1.Id, t1.Col1, t1.Col2, t2.Id, t2.Col1, t2.Col2
from
(SELECT Id, COUNT(*) AS Col1, Col2 FROM Table2 GROUP BY Id) t1
INNER JOIN -- or, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN ....
(SELECT Id, COUNT(*) AS Col1, Col2 FROM Table2 GROUP BY Id) t2
on
t1.Id= t2.Id