Sum multiple data date columns using a single "as of date" data range

Question

The below sql code is my attempt to Sum multiple data date columns 
RECEIVEDATE, TENDERDATE and SHIPDATE 
using a single "as of date" data range

-- Declare variable 
DECLARE @BeginDate date
DECLARE @EndDate date
DECLARE @asofdate date
DECLARE @NumberofDays int = 0
DECLARE @daycnt int = 0 

-- set Begining and Ending date range 
set @BeginDate = '2023-04-15'
Set @EndDate = '2023-04-18'
set @NumberofDays = DateDiff(day, @BeginDate,@EndDate) +1
set @asofdate = @BeginDate 

-- initiate loop ( not to experts - there has to be a better way ) 
while (@daycnt < @NumberofDays)
	begin 

SELECT [VPCCODE], [VPCNAME], @asofdate as 'P_DATE',
		SUM(CASE when CAST(RECEIVEDATE as DATE) = @asofdate THEN 1 else 0 end) AS  RECEIVED,
		SUM(CASE when CAST(TENDERDATE as DATE) = @asofdate THEN 1 else 0 end) AS TENDERED,
		SUM(CASE when CAST(SHIPDATE as DATE) = @asofdate THEN 1 else 0 end) AS SHIPPED

		FROM vpc.Inventory
		WHERE VPCCODE = 091
	
		GROUP BY [VPCCODE],[VPCNAME]
		order by P_DATE

		set @asofdate = DATEADD(day, 1, @asofdate) 
		set @daycnt = @daycnt+1
end


**Current SQL code above creates 4 individual result sets for each P_DATE **





I would like to have 1 result  (se example below

 

  
Please advise if this is possible and assist with code examples.
Thank you in advance for your support



example of vpc.inventory file 



 

Answer 1

Hi @SA Will

You could declare a table variable and then inside the While Loop insert the four individual results into this table.

Check this code.txt

Best regards,

Cosmog Hong

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