I have data like this. Following is the sample data.
alt text http://a.imageshack.us/img695/441/custoemrids.png
I want to get all those CustomerIDs which has date diff of 2 hours in DateCreated of Enquiry.
For example CustomerId 10602 has 3 enquiries . If the time difference is 2 hours in any of these three enquiries then this CustomerId should be in my result set. Same for the other Customers.
Thanks
SELECT [CustomerId]
FROM [Table]
WHERE [DateCreated] >= DATEADD(hour, -2, GETDATE())
AND [CustomerId] = xxx;
This presumes that EnquiryId is the PK of the table. I also presumed you want to count items within two hours of each other.
Select Distinct T1.CustomerId
From Table As T1
Where Exists (
Select 1
From Table As T2
Where T2.CustomerId = T1.CustomerId
And T2.EnquiryId <> T1.EnquiryId
And Abs(DateDiff(hh, T1.DateCreated, T2.DateCreated)) <= 2
)
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