This article demonstrate how to get daily data in Sql Server in different formats as shown in the below image. Here Sales table data is presented in two different daily aggregated sales data formats.
Let us create a Sales table and insert 1000 Sample Sales Records With Random sales date in the past 5 days using the below script.
CREATE DATABASE SqlHintsDailyData GO USE SqlHintsDailyData GO --Create Temporary Sales Table CREATE TABLE #Sales (SalesId INT IDENTITY(1,1), SalesDate DateTime) GO --Populate 1000 Sample Sales Records With --Random past 0-5 days as sales date INSERT INTO #Sales(SalesDate) VALUES(DATEADD(DAY, - ROUND(5 * RAND(), 0),GETDATE())) GO 1000
Demo 1: Getting Daily Data by using Group By
SELECT CAST(SalesDate AS DATE) [Date], Count(1) [Sales Count] FROM #Sales GROUP BY CAST(SalesDate AS DATE) ORDER BY 1
Demo 2: Getting Daily data using Static PIVOT
[ALSO READ] PIVOT and UNPIVOT in Sql Server
SELECT * FROM (SELECT CAST(SalesDate AS DATE) [Date], Count(1) [Sales Count] FROM #Sales GROUP BY CAST(SalesDate AS DATE)) AS DailyData PIVOT( SUM([Sales Count]) FOR [Date] IN ([2015-06-29],[2015-06-30],[2015-07-01], [2015-07-02],[2015-07-03],[2015-07-04])) AS DatePivot
Demo 3: Getting Daily data using Dynamic PIVOT
[ALSO READ] Dynamic PIVOT in Sql Server
Problem with Demo 2 approach is , it is using the static PIVOT to get the data. Which requires the developer to specify all the dates as the pivot columns manually. We can re-write the Demo 2 examples by using Dynamic pivot approach as below which doesn’t require the developer to manually specify the dates column.
DECLARE @DynamicPivotQuery AS NVARCHAR(MAX) DECLARE @ColumnName AS NVARCHAR(MAX) SELECT CAST(SalesDate AS DATE) [Date], Count(1) [Sales Count] INTO #PivotSalesData FROM #Sales GROUP BY CAST(SalesDate AS DATE) --Get distinct values of the PIVOT Column SELECT @ColumnName= ISNULL(@ColumnName + ',','') + QUOTENAME([Date]) FROM (SELECT DISTINCT [Date] FROM #PivotSalesData) AS Dates --Prepare the PIVOT query using the dynamic SET @DynamicPivotQuery = N'SELECT ' + @ColumnName + ' FROM #PivotSalesData PIVOT(SUM( [Sales Count] ) FOR [Date] IN (' + @ColumnName + ')) AS PVTTable' --Execute the Dynamic Pivot Query EXEC sp_executesql @DynamicPivotQuery
RESULT:
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