Web_THBC 为表示层也就是页面(.aspx)
BLL_THBC 为业务逻辑层 DAL_THBC 为数据库交互层 (向数据库执行SQL语句) Model_THBC 为实体类 DbHelper 为数据库连接类统计个专营店的男女数量
select dua.UARTERS_ID,dua.UARTERS_NAME ,sum(case when sex = '1' then 1 else 0 end) as Man ,sum(case when sex = '0' then 1 else 0 end) as Woman from dbo.DCAD_USER as du left join dbo.DCAD_UARTERS as dua on du.UARTERS_ID = dua.UARTERS_ID group by dua.UARTERS_ID,dua.UARTERS_NAME