Question

我的表格值低于

id     name      approved      count
3      az        1             10
3      az        0             5
2      az        1             10
2      az        0             5
3      bz        1             10
3      bz        0             5
2      bz        1             10
2      bz        0             5

我需要用我的最终视图

计算已批准的％= 1

id     name      Rate     
3      az        66.66            
3      bz        66.66            
2      az        66.66          
2      bz        66.66

如果费率为（10/15）* 100，即（已批准的数量= 1 /该ID，名称组合的总数）* 100

Answer 1

这是使用条件聚合的一种方法

SELECT id,
       NAME,
       Isnull(Sum(CASE WHEN approved = 1 THEN [count] END) / Sum([count] * 1.0) * 100,0)
FROM  your_table
GROUP BY id, NAME

* 1.0用于避免整数除法

Answer 2

 select id,name,
 sum(case when approved=1 then round(cast(count as float)/15*100,2) end) 'Rate'
  from Your_Table
  group by id,name

Answer 3

如果您还想返回每行的详细信息。

    create table #t(id int,name varchar(10),approved bit,count int)
    insert into #t
    select 3,'az',1,10 union all
    select 3,'az',0,5 union all
    select 2,'az',1,10 union all
    select 2,'az',0,5 union all
    select 3,'bz',1,10 union all
    select 3,'bz',0,5 union all
    select 2,'bz',1,10 union all
    select 2,'bz',0,5 
    select * from (
       select *,sum(case when approved=1 then count else 0 end )over()*1.0/sum(count)over() as perc from #t
    ) as t where t.approved=1 order by id desc

+----+------+----------+-------+----------------+
| id | name | approved | count | perc           |
+----+------+----------+-------+----------------+
| 3  | az   | 1        | 10    | 0.666666666666 |
| 3  | bz   | 1        | 10    | 0.666666666666 |
| 2  | bz   | 1        | 10    | 0.666666666666 |
| 2  | az   | 1        | 10    | 0.666666666666 |
+----+------+----------+-------+----------------+

给出计数时，计算列中值的百分比

3 个答案: