Sie können case verwenden in diesem Fall -
SELECT type,
sum(case when place = 'home' then 1 else 0 end) as Home,
sum(case when place = 'school' then 1 else 0 end) as school,
sum(case when place = 'work' then 1 else 0 end) as work,
sum(case when place = 'cafe' then 1 else 0 end) as cafe,
sum(case when place = 'friends' then 1 else 0 end) as friends,
sum(case when place = 'mall' then 1 else 0 end) as mall
from reports
group by type
Es sollte Ihr Problem lösen
@S T Mohammed, Um einen solchen Typ zu erhalten, können wir einfach using verwenden nach group oder where Bedingung in der äußeren Abfrage, wie unten -
select type, Home, school, work, cafe, friends, mall from (
SELECT type,
sum(case when place = 'home' then 1 else 0 end) as Home,
sum(case when place = 'school' then 1 else 0 end) as school,
sum(case when place = 'work' then 1 else 0 end) as work,
sum(case when place = 'cafe' then 1 else 0 end) as cafe,
sum(case when place = 'friends' then 1 else 0 end) as friends,
sum(case when place = 'mall' then 1 else 0 end) as mall
from reports
group by type
)
where home >0 and School >0 and Work >0 and cafe>0 and friends>0 and mall>0
