MSSQL行转列 （练习练习）

原始数据：

目标效果：

SQL语句：

select bb.sshop_c,
bb.sshop_n,
case sweek6 when 0 then '×' else '√' end saturday ,
case sweek7 when 0 then '×' else '√' end sunday
from
(
  select j.sshop_c,j.sshop_n,
  isnull(sweek6,0)sweek6 ,
  isnull(sweek7,0)sweek7
   from pub_jshop as j
 left join 
   (
      select sShop_c,
      sum(case when sDay='Saturday' and bBusiness='√' then 1 else 0 end) as sWeek6 ,
      sum(case when sDay='Sunday' and bBusiness='√' then 1 else 0 end ) as sWeek7
      from swt_jOpeningDate
      group by sShop_c
    ) as bt 
   on j.sshop_c=bt.sshop_c
 ) bb

--分组进行判断的时候把√ or x 用0 和1 代替，着用，分组聚合函数的时候好区分不同的情况而不影响结果。