MySQL: запрос для сортировки данных на основе атрибута другого столбца

Question

Итак, придумать название для этого сложно

SELECT Date(p.born_at), SUM(p.value) as 'total_value_for_day'
FROM puppies as p
WHERE p.status = 2
GROUP BY DATE(p.born_at);

Итак, это дает результат 2 столбца.

То, что я хочу, это:

столбцы:

date | status = 1 | status = 2 | status = 3
DATA!!!

есть ли способ сделать это?

Answer 1

SELECT Date(p.born_at), 
SUM(case when status = 1 then p.value end) as 'status = 1',
SUM(case when status = 2 then p.value end) as 'status = 2',
SUM(case when status = 3 then p.value end) as 'status = 3'
FROM puppies as p
WHERE p.status in(1,2,3)
GROUP BY DATE(p.born_at);

Answer 2

SELECT
   DATE(p.born_at)
   , SUM(CASE WHEN STATUS = 1 THEN p.value END) AS 'Status = 1'
   , SUM(CASE WHEN STATUS = 2 THEN p.value END) AS 'Status = 2'
   , SUM(CASE WHEN STATUS = 3 THEN p.value END) AS 'Status = 3'
FROM puppies AS p
WHERE p.status IN(1, 2, 3)
GROUP BY DATE(p.born_at);

Answer 3

SELECT Date(born_at), 
    SUM(case when Status = 1 then value else 0 end) as 'status = 1',
    SUM(case when Status = 2 then value else 0 end) as 'status = 2',
    SUM(case when Status = 3 then value else 0 end) as 'status = 3' 
FROM puppies 
GROUP BY DATE(born_at);