用于矩阵报表的Dynamic Pivot SQL

Question

这是静态数据透视SQL查询。

WITH 
   T 
AS 
(
   SELECT 
      DEPTNO 
   FROM 
      EMP
)
SELECT 
   * 
FROM 
   T
PIVOT 
(
   COUNT(*) 
   FOR 
      (DEPTNO) 
   IN 
      (10,20,30,40)

但是我想对矩阵报表进行动态SQL查询。标题名称将是部门名称而不是部门ID。那我现在该怎么办？

Answer 1

我认为这应该对您有用。您需要给别名一个别名，以使其成为首选：

  SELECT 
      'empname' as empname ,[0] as yourdepartname1, [1] as yourdepartname2, [2] as yourdepartname2, [3]yourdepartname4, [4] as yourdepartname5
   FROM 
      (  
SELECT 
   empname,DEPTNO 
FROM 
   EMP e
inner join department d on d.DEPTNO on e.deptno
group by empname) p
    PIVOT 
    (
       COUNT(*) 
       FOR 
          (empname) 
       IN 
          ([0], [1], [2], [3], [4] ))
    AS PivotTable