A表存储商品点击日志，B表存储商品
要求显示当天所有商品点击量列表并附带总数并按天排序
复制代码 代码如下:
declare @sql varchar(2000)
set @sql='select CONVERT(varchar(100), a.[Time], 23) as 时间,count(b.title) as 总数'
select @sql =@sql+ ',sum(case b.title when '''+Title+''' then 1 else 0 end) as '+'['+Title+']'
from (select distinct title from B) as B
set @sql=@sql+' from A as a left join B as b on a.AId=B.Aid
group by CONVERT(varchar(100), a.[Time], 23) order by CONVERT(varchar(100), a.[Time], 23) desc'
exec(@sql)
显示结果
时间
总数
商品1
商品2
商品3
2013-11-11
5
1
0
4
2013-11-10
13
2
11
1
