Question

I have a 3 fields ( ID, Price, Date )
and it looks like this..

|ID|  |Price|    |           Date      |
--------------------------------------------
|001|  |150.00|  | 2007-01-01 11:48:18.000 |
|002|  |150.00|  | 2007-01-01 15:57:19.000 |
|003|  |150.00|  | 2007-01-02 13:26:12.000 |
|004|  |150.00|  | 2007-01-03 10:31:14.000 |

etc etc

and I need to display the TOTAL AMOUNT of sales for EACH DAY for a certain period of time.
So when I put January 1 to January 6…
it should be

|   Days     |    Total Sales |
-------------------------------
| January 1  | --some amount  |
| January 2  | --some amount  |
| January 3  | --some amount  |
| January 4  | --some amount  |
| January 5  | --some amount  |
| January 6  | --some amount  |

I just cant figure it out and Im stuck with this code 🙂 …

DECLARE @StartDate dateTime,@EndDate dateTime, @TotalSales integer

SET @StartDate = '2007-01-02 11:41:19.000' 
SET @EndDate = '2007-01-02 11:46:06.000'
SET @TotalSales = 0

while ( @StartDate = '2007-01-02 11:41:19.000' )
BEGIN

--Some codes

END

thanks 🙂

Answer 1

You don’t need a loop, use set operations whenever possible:

DECLARE @StartDate dateTime,@EndDate dateTime

SET @StartDate = convert(DateTime,'2007-01-01 11:41:19.000',102)
SET @EndDate = convert(DateTime,'2007-01-04 11:46:06.000',102) 

;WITH CTE AS (
    SELECT ID,Price,[Date]  
    FROM Sales
    WHERE [Date] Between @StartDate AND @EndDate
)
SELECT DATENAME( month ,[Date] ) + ' ' + DATENAME( day ,[Date] ) AS Days
     , SUM(Price)AS 'Total Sales'
FROM CTE 
GROUP BY DATENAME( month ,[Date] ) + ' ' + DATENAME( day ,[Date] )

SQL-Fiddle Demo