sql：根据条件过滤行

Question

如何编写sql查询返回行只有列值超过列总和的1％，如

%sql select * from df1 where total_bytes>= 0.01*sum(total_bytes) order by total_bytes desc 

但这给了我错误。

Answer 1

使用子查询计算total_bytes列的总和：

select *
from df1
where total_bytes >= 0.01*(select sum(total_bytes) from df1)
order by total_bytes desc