Time range between two times

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Sql server how to select time range between two columns times. Can any one explain how to do ASAP

What I have tried:

select * from tablename
where starttime < @starttime
and endtime > @entime

Posted 27-Aug-17 19:47pm

Member 12523149

Updated 27-Aug-17 20:03pm

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Richard Deeming 29-Aug-17 14:15pm

where starttime < @starttime and endtime > @endtime

At a guess, that's your problem: you're looking for records which start before the specified start time, and end after the specified end time.

If you want to select records which fall between the specified start and end times, you're going to need to reverse those operators:

where starttime >= @starttime and endtime <= @endtime

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OriginalGriff · Answer 1 · 2017-08-27T20:03:00

When you get problems like this, it's often because the database has been designed wrong.
Start by checking the column definitions: if starttime and endtime are not DATE, DATETIME, or DATETIME2 columns, then no date-related queries will work as they will be treated as string =-based comparisons. With those, the entire comparison is based on the first different character in the two strings, so "01-01-2017' comes before "31-12-2016" and so forth.

If the columns are ok, check the parameter values: again these should be DateTime values in your native presentation language that passes them, not strings - otherwise SQL has to "guess" if they are "dd-mm-yy", "mm-dd-yy", or "yy-dd-mm" and it will frequently get it wrong.

If that's all OK, look at the data, and the parameter values manually, and check that some values exist that match both condition.

Sorry, but we can't do any of that: we have no access to your code or data!