How to get value by a range of dates? - sql

Question

I have a table like so
And With this code I get the 5 latest values for each domainId
;WITH grp AS
(
SELECT DomainId, [Date],Passed, DatabasePerformance,ServerPerformance,
rn = ROW_NUMBER() OVER
(PARTITION BY DomainId ORDER BY [Date] DESC)
FROM dbo.DomainDetailDataHistory H
)
SELECT g.DomainId, g.[Date],g.Passed, g.ServerPerformance, g.DatabasePerformance
FROM grp g
INNER JOIN #Latest T ON T.DomainId = g.DomainId
WHERE rn < 7 AND t.date != g.[Date]
ORDER BY DomainId, [Date] DESC
What I Want
Well I would like to know how many tickets were sold for each of these 5 latest rows but with the following condition:
Each of these rows come with their own date which differs.
for each date I want to check how many were sold the last 15minutes AND how many were sold the last 30mns.
Example:
I get these 5 rows for each domainId
I want to extend the above with two columns, "soldTicketsLast15" and "soldTicketsLast30"
The date column contains all the dates I need and for each of these dates I want to go back 15 min and go back 30min to and get how many tickets were sold
Example:
SELECT MAX(SoldTickets) FROM DomainDetailDataHistory
WHERE [Date] >= DATEADD(minute, -15, '2016-04-12 12:10:28.2270000')
SELECT MAX(SoldTickets) FROM DomainDetailDataHistory
WHERE [Date] >= DATEADD(minute, -30, '2016-04-12 12:10:28.2270000')
How can i accomplish this?

Answer 1

I'd use OUTER APPLY or CROSS APPLY.
;WITH grp AS
(
SELECT
DomainId, [Date], Passed, DatabasePerformance, ServerPerformance,
rn = ROW_NUMBER() OVER (PARTITION BY DomainId ORDER BY [Date] DESC)
FROM dbo.DomainDetailDataHistory H
)
SELECT
g.DomainId, g.[Date],g.Passed, g.ServerPerformance, g.DatabasePerformance
,A15.SoldTicketsLast15
,A30.SoldTicketsLast30
FROM
grp g
INNER JOIN #Latest T ON T.DomainId = g.DomainId
OUTER APPLY
(
SELECT MAX(H.SoldTickets) - MIN(H.SoldTickets) AS SoldTicketsLast15
FROM DomainDetailDataHistory AS H
WHERE
H.DomainId = g.DomainId AND
H.[Date] >= DATEADD(minute, -15, g.[Date])
) AS A15
OUTER APPLY
(
SELECT MAX(H.SoldTickets) - MIN(H.SoldTickets) AS SoldTicketsLast30
FROM DomainDetailDataHistory AS H
WHERE
H.DomainId = g.DomainId AND
H.[Date] >= DATEADD(minute, -30, g.[Date])
) AS A30
WHERE
rn < 7
AND T.[date] != g.[Date]
ORDER BY DomainId, [Date] DESC;
To make the correlated APPLY queries efficient there should be an appropriate index, like the following:
CREATE NONCLUSTERED INDEX [IX_DomainId_Date] ON [dbo].[DomainDetailDataHistory]
(
[DomainId] ASC,
[Date] ASC
)
INCLUDE ([SoldTickets])
This index may also help to make the main part of your query (grp) efficient.

Answer 2

If I understood your question correctly, you want to get the tickets sold from one of your dates (in the Date column) going back 15 minutes and 30 minutes. Assuming that you are using your DATEADD function correctly, the following should work:
SELECT MAX(SoldTickets) FROM DomainDetailDataHistory
WHERE [Date] BETWEEN [DATE] AND DATEADD(minute, -15, '2016-04-12 12:10:28.2270000') GROUP BY [SoldTickets]
The between operator allows you to retrieve results between two date parameters. In the SQL above, we also need a group by since you are using a GROUPING function (MAX). The group by would depend on what you want to group by but I think in your case it would be SoldTickets.
The SQL above will give you the ones between the date and 15 minutes back. You could do something similar with the 30 minutes back.