面试题

           胜 负
2015-05-09 2  2

2015-05-10 1  2

create table #tmp (
    rq varchar(10),
    shengfu nchar(1)
)
--插入数据
insert into #tmp values('2015-05-09','胜')
insert into #tmp values('2015-05-09','胜')
insert into #tmp values('2015-05-09','负')
insert into #tmp values('2015-05-09','负')
insert into #tmp values('2015-05-10','胜')
insert into #tmp values('2015-05-10','负')
insert into #tmp values('2015-05-10','负')

--查询表中数据
select * from #tmp
--查询需要得到的结果
select rq as ' ',SUM(case when shengfu='胜' then 1 else 0 end) '胜',SUM(case when shengfu='负' then 1 else 0 end) '负'
from #tmp
group by rq