------------------合计、小计的用法-----------------
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
/*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
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
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
drop table #t
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
2 小计 29 32 52
合计 NULL 53 64 104
（所影响的行数为 11 行）
*/