Question

提出这个问题的最佳方式是，如果我举一个例子说明我拥有的东西以及我想要得到的东西。我有一张表格，显示所有经理，这些经理下的所有主管以及这些主管下的所有员工。我想要得到的是提供相同的信息，但形成的方式是管理者和主管不会像现在的表一样重复。所以，这是原始表：

Manager		Supervisor	Employee	Employee's Title	Employee Name
John Smith	Pete Adams	15352		Analyst			Tiffany Johnson
John Smith	Pete Adams	43543		Developer		David Jackson
John Smith	Pete Adams	54553		Programmer		Mike Dudley
John Smith	Patricia Salomon36656		Analyst			Josh Adkins
John Smith	Patricia Salomon5676		Developer		Beth Davidoff
John Smith	Patricia Salomon78568		Programmer		Rick Tyler
Jody Melito	Ana Carlisle	6783		Architect		Justin Acevedo
Jody Melito	Ana Carlisle	1747		Designer		Joey Smith

这就是我想要的：

Manager		Supervisor	    Employee	  Employee's Title	  Employee Name	Total
John Smith	Pete Adams	    15352		  Analyst			  Tiffany Johnson	3
				            43543		  Developer		      David Jackson	
				            54553		  Programmer		  Mike Dudley	
		    Patricia Salomon36656		  Analyst		      Josh Adkins	    3
				            5676		  Developer		      Beth Davidoff	
				            78568		  Programmer		  Rick Tyler	
Jody Melito	Ana Carlisle    6783		  Architect		      Justin Acevedo	2
				            1747		  Designer		      Joey Smith

所以，基本上，我在这里要做的是避免重复管理者和/或主管的名字。我在Excel中完成了这个但是使用了PIVOT，但我不确定我能在SQL Server中做同样的事情，因为TSQL的PIVOT要求我聚合数据而我在这里没有这样做。此外，我觉得应该有一个更简单的方法来做到这一点。有没有人有想法？感谢!!!

Answer 1

试试这个：

with dat as (
  select * 
       , rn1 = row_number() over (partition by manager order by employee)
       , cnt1 = count(*) over (partition by manager)
       , rn2 = row_number() over (partition by manager, Supervisor order by employee)
       , cnt2 = count(*) over (partition by manager, Supervisor)
  from ( 
    values ('John Smith','Pete Adams','15352')
         , ('John Smith','Pete Adams','15353')
         , ('John Smith','Patricia Salomon','36656')
         , ('John Smith','Patricia Salomon','36658')
    ) yt (Manager,Supervisor,Employee)
)
select manager1    = case when rn1 = 1 then manager else null end
     , managerC    = case when rn1 = 1 then cnt1 else null end
     , supervisor1 = case when rn2 = 1 then supervisor else null end      
     , supervisorC = case when rn2 = 1 then cnt2 else null end      
     , *
from dat   
order by manager, rn1, supervisor, rn2, employee

摘要视图/分类显示......可能是枢轴？

1 个答案: