select groupid,count(value) as x
from test_distinct_count
group by rollup (groupid);
此查询给出的输出类似于:
我需要的是在总计列中显示所有groupid的值5。 像这样:
如何使用Hana Sql做到这一点。
答案 0 :(得分:1)
以下是一个选择:
with grp as ( select groupid, count(value) as x
from test_distinct_count
group by rollup (groupid) ),
cnt as ( select count(value) as total from test_distinct_count )
select grp.groupid, grp.x, cnt.total from grp cross join cnt;
答案 1 :(得分:1)
来自sql server的后台希望sum()over()在Hana中存在,请尝试以下解决方案
create table #temp(groupid int,value int)
insert into #temp values(1,1)
insert into #temp values(1,1)
insert into #temp values(1,1)
insert into #temp values(2,2)
insert into #temp values(2,2)
select
a.*,sum(x) over()/2 as Total
from (
select groupid,count(value) as x
from #temp
group by rollup (groupid)
)a
答案 2 :(得分:1)
创建表#temp(groupid int,value int)
插入#temp值(1,1) 插入#temp值(1,1) 插入#temp值(1,1) 插入#temp值(2,2) 插入#temp值(2,2)
从( 选择groupid,count(value)作为x 来自#temp 按汇总分组(groupid) 交叉申请 ( 选择计数(值)作为总计 来自#temp )b
答案 3 :(得分:0)
先执行窗口功能,然后执行汇总:
select groupid, count(value), max(total) as total
from (select groupid, value,
sum(case when value is not null then 1 end) over () as total
from test_distinct_count
group by groupid
) t
group by rollup (groupid);
如果您想向group by
添加更多列,这样做会更安全。