用grouping求小计和合计

最新推荐文章于 2024-01-29 14:46:31 发布

转载最新推荐文章于 2024-01-29 14:46:31 发布 · 960 阅读

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#insert #null #c #table

本文通过具体实例演示了如何使用SQL的GROUP BY与ROLLUP进行复杂的数据分组及汇总操作，展示了不同层级的统计数据获取方法。

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create table #t(a int,b int,c int,d int,e int) 
insert into #t values(1,2,3,4,5) 
insert into #t values(1,2,3,4,6) 
insert into #t values(1,2,3,4,7) 
insert into #t values(1,2,3,4,8) 
insert into #t values(1,3,3,4,5) 
insert into #t values(1,3,3,4,6) 
insert into #t values(1,3,3,4,8) 
insert into #t values(1,3,3,4,7) 

insert into #t values(2,2,2,4,5) 
insert into #t values(2,2,3,4,6) 
insert into #t values(2,2,4,4,7) 
insert into #t values(2,2,5,4,8) 
insert into #t values(2,3,6,4,5) 
insert into #t values(2,3,3,4,6) 
insert into #t values(2,3,3,4,8) 
insert into #t values(2,3,3,4,7)

select 
  case when grouping(a)=1 then '合计' else cast(a as varchar) end a, b, sum(c) as c,sum(d) as d,sum(e) as e
from 
  #t 
group by 
  a,b 
with rollup 
  having grouping(b)=0 or grouping(a)=1

结果：

a b c d e

------------------------------ ----------- ----------- ----------- -----------

1 2 12 16 26

1 3 12 16 26

2 2 14 16 26

2 3 15 16 26

合计 NULL 53 64 104

（所影响的行数为 5 行）

select 
  case when grouping(a)=1 then '合计' else cast(a as varchar) end a, b, c, sum(d) as d,sum(e) as e
from 
  #t 
group by 
  a,b,c 
with rollup 
  having grouping(c)=0 or grouping(a)=1

结果：

a b c d e

------------------------------ ----------- ----------- ----------- -----------

1 2 3 16 26

1 3 3 16 26

2 2 2 4 5

2 2 3 4 6

2 2 4 4 7

2 2 5 4 8

2 3 3 12 21

2 3 6 4 5

合计 NULL NULL 64 104

（所影响的行数为 9 行）

select 
  case when grouping(a)=1 then '合计' else cast(a as varchar) end a, b, 
  case when grouping(c)=1 and grouping(b)=0 then '小计' else cast(c as varchar) end c, 
  sum(d) as d,sum(e) as e
from 
  #t 
group by 
  a,b,c 
with rollup 
  having grouping(a)=1 or grouping(b)=0

结果：

a b c d e

------------------------------ ----------- ------------------------------ ----------- -----------

1 2 3 16 26

1 2 小计 16 26

1 3 3 16 26

1 3 小计 16 26

2 2 2 4 5

2 2 3 4 6

2 2 4 4 7

2 2 5 4 8

2 2 小计 16 26

2 3 3 12 21

2 3 6 4 5

2 3 小计 16 26

合计 NULL NULL 64 104

（所影响的行数为 13 行）

select 
   case when grouping(a)=1 then '合计' else cast(a as varchar) end a, 
   case when grouping(b)=1 and grouping(a)=0 then '小计' else cast(b as varchar) end b, sum(c) as c, sum(d) as d,sum(e) as e from #t 
group by 
   a,b,c 
with rollup 
   having grouping(a)=1 or grouping(b)=1 or grouping(c)=0

结果：

a b c d e

------------------------------ ------------------------------ ----------- ----------- -----------

1 2 12 16 26

1 3 12 16 26

1 小计 24 32 52

2 2 2 4 5

2 2 3 4 6

2 2 4 4 7

2 2 5 4 8

2 3 9 12 21

2 3 6 4 5