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  4. Select records between day, time 05:00:00 and day+1 until time 05:00:00

Select records between day, time 05:00:00 and day+1 until time 05:00:00

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  • Richard DeemingR Richard Deeming

    As others have said, the time should be part of the DATE_CREATED column. However, it's still possible to get what you need:

    WHERE
    (DATE_CREATED = '20140902' And Convert(time, TIME_CREATED) >= '05:00:00')
    Or
    (DATE_CREATED = '20140903' And Convert(time, TIME_CREATED) <= '05:00:00')


    "These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

    C Offline
    C Offline
    Corporal Agarn
    wrote on last edited by
    #9

    That is great! I get started down a path and do not think outside of that. :~

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    • A Ambertje

      nvarchar

      L Offline
      L Offline
      Lost User
      wrote on last edited by
      #10

      Why are you using nvarchar instead of DateTime?

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      • A Ambertje

        nvarchar

        L Offline
        L Offline
        Lost User
        wrote on last edited by
        #11

        Yes, kinda predictable. It's a bad idea to do so, and should be fixed. The time you are saving is a culture-specific format, it is a text, something the computer does not calculate with. A DateTime in a computer is a floating point. The integer-part counts the days passed since the epoch (start of counting of days, often 1/1/1900), the decimal part represents the time, in ticks. They are not two separate facts - and should be modelled as a single field, of the DateTime-datatype. The computer can easily calculate with those. Breaking the date and time into separate fields is as usefull as using a separate field for the day, month, year, hour, minute and second. If they represent a single atomic fact, than that is how it should be modelled.

        Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^]

        J C 2 Replies Last reply
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        • L Lost User

          Yes, kinda predictable. It's a bad idea to do so, and should be fixed. The time you are saving is a culture-specific format, it is a text, something the computer does not calculate with. A DateTime in a computer is a floating point. The integer-part counts the days passed since the epoch (start of counting of days, often 1/1/1900), the decimal part represents the time, in ticks. They are not two separate facts - and should be modelled as a single field, of the DateTime-datatype. The computer can easily calculate with those. Breaking the date and time into separate fields is as usefull as using a separate field for the day, month, year, hour, minute and second. If they represent a single atomic fact, than that is how it should be modelled.

          Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^]

          J Offline
          J Offline
          Jorgen Andersson
          wrote on last edited by
          #12

          It's interesting that the Date type in Oracle while handled as a single entity but is stored internally as seven bytes. One byte each for year, month, day, hour minute, second and fraction of a second. It's a space waster, but oh so fast to calculate with. Timestamp on the other hand is stored as a floating point to save space.

          Wrong is evil and must be defeated. - Jeff Ello[^]

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          • J Jorgen Andersson

            It's interesting that the Date type in Oracle while handled as a single entity but is stored internally as seven bytes. One byte each for year, month, day, hour minute, second and fraction of a second. It's a space waster, but oh so fast to calculate with. Timestamp on the other hand is stored as a floating point to save space.

            Wrong is evil and must be defeated. - Jeff Ello[^]

            L Offline
            L Offline
            Lost User
            wrote on last edited by
            #13

            Internally, yes, if the engine expects it. But still no way to model a database.

            Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^]

            J 1 Reply Last reply
            0
            • L Lost User

              Internally, yes, if the engine expects it. But still no way to model a database.

              Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^]

              J Offline
              J Offline
              Jorgen Andersson
              wrote on last edited by
              #14

              Indeed.

              Wrong is evil and must be defeated. - Jeff Ello[^]

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              • L Lost User

                Yes, kinda predictable. It's a bad idea to do so, and should be fixed. The time you are saving is a culture-specific format, it is a text, something the computer does not calculate with. A DateTime in a computer is a floating point. The integer-part counts the days passed since the epoch (start of counting of days, often 1/1/1900), the decimal part represents the time, in ticks. They are not two separate facts - and should be modelled as a single field, of the DateTime-datatype. The computer can easily calculate with those. Breaking the date and time into separate fields is as usefull as using a separate field for the day, month, year, hour, minute and second. If they represent a single atomic fact, than that is how it should be modelled.

                Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^]

                C Offline
                C Offline
                Corporal Agarn
                wrote on last edited by
                #15

                If date and time should not be keep separate, why did MS create data formats DATE and TIME? :-D

                Richard DeemingR 1 Reply Last reply
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                • C Corporal Agarn

                  If date and time should not be keep separate, why did MS create data formats DATE and TIME? :-D

                  Richard DeemingR Offline
                  Richard DeemingR Offline
                  Richard Deeming
                  wrote on last edited by
                  #16

                  Because there are times when you do need to store just a date or just a time. The OP's example just isn't one of them. :)


                  "These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

                  "These people looked deep within my soul and assigned me a number based on the order in which I joined" - Homer

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                  • Richard DeemingR Richard Deeming

                    As others have said, the time should be part of the DATE_CREATED column. However, it's still possible to get what you need:

                    WHERE
                    (DATE_CREATED = '20140902' And Convert(time, TIME_CREATED) >= '05:00:00')
                    Or
                    (DATE_CREATED = '20140903' And Convert(time, TIME_CREATED) <= '05:00:00')


                    "These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

                    S Offline
                    S Offline
                    sai sruthi
                    wrote on last edited by
                    #17

                    convert function is not working in access

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                    • A Ambertje

                      Hello everyone, Can someone help me select rows between 2 dates en between 2 times. I need to select all records from 02/09/2014 starting from time 05:00:00 until the next day time until 05:00 If I do it like this then it wont work, no records shows:

                      SELECT TOP 10000 *
                      FROM Staging.[dbo].AD
                      WHERE DATE_CREATED BETWEEN '02/09/2014' and '03/09/2014'
                      AND Convert(Time,TIME_CREATED) between '05:00:00' AND '05:00:00'

                      It should be something like this: Between DATE_CREATED 02/09/2014, TIME_CREATED 05:00:00 and DATE_CREATED 03/09/2014, TIME_CREATED 05:00:00 Kind regards, Ambertje

                      C Offline
                      C Offline
                      challa naresh kumar reddy
                      wrote on last edited by
                      #18

                      select * from Staging.[dbo].AD where DATE_CREATED between '2013-03-08 05:00:00' and '2013-03-09 05:00:00' -- I hope i will help u...

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