SQL Server Group By Help Required - sql-server

Question

Being a beginner, how can I get results as mentioned in the diagram. I am not getting results by grouping. Please advise.

Answer 1

If I'm reading your example data correctly, it seems that for Query3, you have the data flip-flopped for the dates. I think Query3 elapsed for 10/20/2017 should be 2:03 and for 10/21/2017, the elapsed time should be 1:48.
If that is indeed the case, here is a solution that uses a combination of Common Table Expressions, aggregation and PIVOT. It works for the example data you've provided in your question. You may need to adjust it for other data.
set nocount on
Declare #t Table (ID int, [Date] Date, ExecutedTime varchar(10), Label Varchar(10))
insert into #t values
(1,'2017-10-20','0:01:16','Query1'),
(2,'2017-10-20','0:00:20','Query1'),
(3,'2017-10-20','0:00:14','Query1'),
(4,'2017-10-20','0:01:43','Query2'),
(5,'2017-10-20','0:00:33','Query2'),
(6,'2017-10-20','0:00:34','Query2'),
(7,'2017-10-20','0:01:18','Query3'),
(8,'2017-10-20','0:00:30','Query3'),
(9,'2017-10-20','0:00:15','Query3'),
(10,'2017-10-21','0:01:16','Query1'),
(11,'2017-10-21','0:00:20','Query1'),
(12,'2017-10-21','0:00:14','Query1'),
(13,'2017-10-21','0:01:43','Query2'),
(14,'2017-10-21','0:00:33','Query2'),
(15,'2017-10-21','0:00:34','Query2'),
(16,'2017-10-21','0:01:18','Query3'),
(16,'2017-10-21','0:00:30','Query3')
;
With ExecutedTimeInSeconds as --Convert ExecutedTime to seconds in preparation for aggregation
(
select
[Date],
Label,
datepart(hour,(convert(time,executedTime))) * 3600 +
datepart(minute,(convert(time,executedTime))) * 60 +
datepart(second,(convert(time,executedTime))) as ElapsedSeconds
from #t
)
,AggregatedDataInElapsedSeconds as --Aggregate the seconds by Date and Label
(
SELECT [Date]
,Label
,sum(ElapsedSeconds) AS ElapsedSeconds
FROM ExecutedTimeInSeconds
GROUP BY [Date]
,Label
),
DataReadyForPivot as --Convert the aggregageted seconds back to an elapsed time
(
SELECT [Date], Label,
RIGHT('0' + CAST(ElapsedSeconds / 3600 AS VARCHAR),2) + ':' +
RIGHT('0' + CAST((ElapsedSeconds / 60) % 60 AS VARCHAR),2) + ':' +
RIGHT('0' + CAST(ElapsedSeconds % 60 AS VARCHAR),2) as ExecutedSum
from AggregatedDataInElapsedSeconds
)
,
PivotedData as --Pivot the data
(
SELECT *
FROM DataReadyForPivot
PIVOT(MAX(ExecutedSum) FOR Label IN (
[Query1]
,[Query2]
,[Query3]
)) AS pvt
)
select --add a row number as Id
ROW_NUMBER() over (order by [Date] desc) as Id,
*
from PivotedData
| Id | Date | Query1 | Query2 | Query3 |
|----|------------|----------|----------|----------|
| 1 | 2017-10-21 | 00:01:50 | 00:02:50 | 00:01:48 |
| 2 | 2017-10-20 | 00:01:50 | 00:02:50 | 00:02:03 |