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Asked: 2026-06-06T22:14:00+00:00

I have selected rows based on DateTime before using either: DATEADD(day, -1, GetDate()) AND

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I have selected rows based on DateTime before using either: 

DATEADD(day, -1, GetDate()) AND GETDATE()

to get the latest record since yesterday, and 

 DECLARE @today DATETIME = CAST(FLOOR(CAST(GETDATE() AS FLOAT)) AS DATETIME)  
DATEADD(mi, 00, DATEADD(hh, 8, @today)) AND DATEADD(hh, 9, @today)

In order to get a row that was between a certain time frame from the current day. Now I have a table that has a separate time and date column, so both of these do not work. I always get an error when I try either of the above methods saying:
“The data types time and datetime are incompatible in the greater than or equal to operator.” I know the problem is that I don’t have a DateTime type column to reference. Is there a way to get a row between a certain time frame referencing separate time and date fields? Thanks

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1 Answer

  1. Editorial Team

    You can add the Date and the Time fields together to create a single date/time field with which to compare:

    create table #temp (id int, d date, t time)
insert into #temp values (1, '1/1/2000', '1:00 PM')
insert into #temp values (2, '1/1/2000', '2:00 PM')
insert into #temp values (3, '1/1/2000', '3:00 PM')

select * from #temp where cast(d as datetime) + cast(t as datetime) between '1/1/2000 1:10 PM' and '1/1/2000 2:30 PM'

    So provided your DATEADD() is setup correctly, you could do this:

    SELECT * FROM sometable WHERE cast(DateField as datetime) + cast(TimeField as datetime) BETWEEN DATEADD(mi, 00, DATEADD(hh, 8, @today)) AND DATEADD(hh, 9, @today)
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