Windowed Functions in SQL Server -


I have a table named order in which the data looks like this: 

 EMPId order value order1d1 100 1 2 167 89 ....    There are many orders for each empID what I want to get output as this 
 
 Empid Rank VALUETOTAL VALUETHISEMPID 1 1 300 100 4 2 300 50 \ ... 
 
 If there are many amps, it should be given the same rank with the same value and API id. 
 
 I tried 
 
  SEP, SUM (val) OVER () as VALUETOTAL, SUM (val) over (Partition by EmpID)  
 
 How can I get the RAM and how can I get it by ValueTheEmpID?

First test data: enter #t values ​​(1, 10, 100) in #t values Insert (# 1, 20, 101) into #t values ​​(2, 30, 120) into #t values ​​(3, 10, 130), insert in #t values ​​(3, 10.5, 131) into #t values ​​( 4, 100, 140)

You need two steps, one to get empIds and their corresponding sequence values. Step two has to get total total and rank: 

 ; With Step 1 (EmpId, ValueTheEmpId) (select empId, sum (OrderValue) from #t group by empId) Value as EmpId, rank () value (ValueThisEmpId desc) as "rank", value (valueTHisEmpId) ) Choose Value as OverTotal, Step 1 from ValueTheEmpId

This output will: 

  4 1 180.50 100.00 1 2 180.50 30.00 2 2 180.50 30.00 3 4 180.50 20.50 If you do not want to interval in ranking, then use the dense rank:  
 ; With the value of "Rank" by EmpId, dense_rank () value (ValueThisEmpId desc), with the value (Order empId, empId from #t group, by EmpId, ValueTheEmpId), the total value As (valueTHisEmpId), step 1 from ValueTheEmpId

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