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分享oracle first last
select min(sal) keep(dense_rank first order by sum(sal) asc) first,
min(sal) keep(dense_rank last order by sum(sal) asc) last
from emp
group by sal
为什么取不到5000 呢？
min(sal) keep(dense_rank last order by sum(sal) asc) last
from emp
group by sal
为什么取不到5000 呢？
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