有一张表
id a b c
001 9 8 7
002 10 7 6
003 8 9 5
004 7 6 9
005 6 10 10
006 5 9 8
……
如何用foxpro、access对字段a，b，c 进行分段统计，即5～6，7～8，9～10三段
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create table #temp1(id char(3),a int,b int,c int)
insert into #temp1(id,a,b,c)values('001',9,8,7)
insert into #temp1(id,a,b,c)values('002',10,7,6)
insert into #temp1(id,a,b,c)values('003',8,9,5)
insert into #temp1(id,a,b,c)values('004',7,6,9)
insert into #temp1(id,a,b,c)values('005',6,10,10)
insert into #temp1(id,a,b,c)values('006',5,9,8)
select '5-6'id,
sum(case when a between 5 and 6 then 1 else 0 end) a,
sum(case when b between 5 and 6 then 1 else 0 end) b,
sum(case when c between 5 and 6 then 1 else 0 end) c
from #temp1
union
select '7-8'id,
sum(case when a between 7 and 8 then 1 else 0 end) a,
sum(case when b between 7 and 8 then 1 else 0 end) b,
sum(case when c between 7 and 8 then 1 else 0 end) c
from #temp1
union
select '9-10'id,
sum(case when a between 9 and 10 then 1 else 0 end) a,
sum(case when b between 9 and 10 then 1 else 0 end) b,
sum(case when c between 9 and 10 then 1 else 0 end) c
from #temp1
drop table #temp1
结果：
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id a b c
5-6 2 1 2
7-8 2 2 2
9-10 2 3 2
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是要这个东西吗？
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