Hello i need help abou SQL a have this table
and i need this result.
thanks for your attention and your answers.
x
select
to_char(r.date,'yyyy') YEAR,
sum(1),
sum(r.cafe) cafe,
sum(r.drink) drink,
sum(r.tea) tea
from ucet a
join drinks r on a.IDT=r.IDT
join feat ce on a.IDT=ce.IDT
join dance c on a.ID= c.ID
group by to_char(r.date,'yyyy')
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Answer
You can use a sum and group by as below:
SELECT
DISTINCT YEAR(r.date) year,
COUNT(DISTINCT(number)) number,
SUM(r.cafe) cafe,
SUM(r.drink) drink,
SUM(r.tea) tea
FROM drinks r
JOIN ucet a on a.IDT = r.IDT
GROUP BY YEAR(r.date)
Please also bear in mind that date is a reserved word for a datatype in many RDBMS systems, as such I would suggest naming your columns as something more appropriate, avoiding reserved words.