forpas
2019-07-03 22:28
您可以按零件号分组并在HAVING子句中设置条件：
select
partnumber, 'Yes' MissingDepots
from stock
group by partnumber
having
sum(flag_redundant) > 0 and
sum(case when flag_redundant = 0 then 1 end) > 0
要么：
select
partnumber, 'Yes' MissingDepots
from stock
group by partnumber
having sum(case when flag_redundant = 0 then 1 end) between 1 and count(*) - 1
参见演示。
结果：
> partnumber | missingdepots
> ---------: | :------------
> 1 | Yes
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