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#π #BigQuery #γ―γγΉιθ¨ #DS100ζ¬γγγ― #SQL
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#standaardSQL | |
with gender_era_amount as ( | |
select | |
c.gender_cd as gender | |
, trunc(c.age/10) * 10 as era | |
, sum(r.amount) as amount | |
from `prj-test3.100knocks.customer` as c | |
join `prj-test3.100knocks.receipt` as r | |
using(customer_id) | |
group by | |
gender | |
, era | |
) | |
select | |
era | |
, max(case gender when 0 then amount else 0 end) as male | |
, max(case gender when 1 then amount else 0 end) as female | |
, max(case gender when 9 then amount else 0 end) as unknown | |
from gender_era_amount | |
group by era | |
order by era | |
; |
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