Datetime comparison

  • How do I do the following?

    1) Do I put the 0700 in quotes or not?

    ...DATEPART(hh,@start_date_time) >= '0700'

    2) I want to change the time portion of the @start_date_time var to 0700?

  • What do you want to do ?

    datepart(hh,**) will only return hours-part.

    Datepart(mi,..) will only return minutes-part.

    why not compare to convert(datetime, convert(char(10),getdate(),121) + ' 07:00:00'))

     

    from Books Online :

    DATEPART

    Returns an integer representing the specified datepart of the specified date.

    Syntax

    DATEPART ( datepart , date )

     

    Johan

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  • Rob,

    what does  '0700' refer to in your SQL Query? I mean what part of the date?

     

    Prasad Bhogadi
    www.inforaise.com

  • '0700' seems 7AM to me. If yes, DATEPART(hh, @start_date_time) >= 7 may answer Q1. With regard to Q2, if you'd like to retrieve 'hh00' out of a datetime field, you may do something like RIGHT('0' + DATEPART(hh, @start_date_time) + '00', 4).

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