Question

In Table, Time and date fields are two separate fields. I need to make a query something like this give all records where date and time <= givenDateTime. How do i do that please?

EDIT
My query:-

select DateField, TimeField from Table1 where DateField <= '07/26/2009' and TimeField <= '16:26:20'

Result is:-

2008-04-22 00:00:00.000 1899-12-30 23:59:58.000

2009-04-15 00:00:00.000 1899-12-30 23:59:56.000

2006-06-06 00:00:00.000 1899-12-30 23:59:53.000

See the Time above in results. Its wrong

Answer 1

Break up the @givenDateTime to the date component and the time component and use AND to build up the WHERE clause:

DECLARE @givenDate DATETIME 
SELECT @givenDate = DATEADD(dd, 0, DATEDIFF(dd, 0, @givenDateTime))

DECLARE @givenTime DATETIME 
SELECT @givenTime =  CONVERT(varchar(2),
      CASE
           WHEN DATEPART([hour], @givenDateTime) > 12 THEN CONVERT(varchar(2), (DATEPART([hour], @givenDateTime) - 12))
           WHEN DATEPART([hour], @givenDateTime) = 0 THEN '12'
           ELSE CONVERT(varchar(2), DATEPART([hour], @givenDateTime))
      END
 ) + ':' +
 CONVERT(char(2), SUBSTRING(CONVERT(char(5), @givenDateTime, 108), 4, 2)) + ' ' +
 CONVERT(varchar(2),
      CASE
           WHEN DATEPART([hour], @givenDateTime) > 12 THEN 'PM'
           ELSE 'AM'
      END
 ) 

SELECT * FROM myTable
WHERE tableDate <= @givenDate AND tableTime <= @givenTime

Date conversion taken from here.
Time conversion taken from here.

Note that the @givenTime will have a date of 01 Jan 1900 (plus the time), so be sure that your where clause takes that into account.