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If then questions.

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  • If then questions.

    Disclaimer: This is my first time building expressions. I tried to find the answer without having to come in and ask with no luck.

    I am building a dispatching database

    The fields this concerns are:

    Recieved_Time, Enroute_Time, Arrival_Time, and Departure_Time.

    What I need to do is have a 5th field called Status change based on if there is a value in each of the 4 above fields. Obviously the fields will be completed sequentially.

    Any help appreciated

  • #2
    Re: If then questions.

    I am not understanding what the question is.....if you need another field then add it the same way you added the other 4 fields. Must be more to it than that but I need you to give more information really.....unknown even what field type the Status field will be (Logical, Character, Numeric,...).

    And what expression are you referring to...

    The more specific the information you give us the more specific we can be with answers!!
    Mike
    __________________________________________
    It is only when we forget all our learning that we begin to know.
    It's not what you look at that matters, it's what you see.
    Henry David Thoreau
    __________________________________________



    Comment


    • #3
      Re: If then questions.

      After a lot of head pounding on the desk I figured it out. It was just a calculated field expression.

      IF(DEPARTURE_TIME > NULL_VALUE(),"Complete",IF(ARRIVAL_TIME > NULL_VALUE(),"On Scene",IF(ENROUTE_TIME > NULL_VALUE(),"EnRoute",IF(RECIEVED_TIME > NULL_VALUE(),"Pending","Error"))))

      Thank you, and I will try to be as specific as possible in the future.

      Comment


      • #4
        Re: If then questions.

        for a start, look at/try this. To see a difference just remove the now() from the dimming of departure time. And FYI, you have received spelled incorrectly.

        Code:
        delete Departure_Time
        dim received_time as t=now()
        dim Enroute_Time as t=now()
        dim Arrival_Time as t=now()
        dim Departure_Time as t=now()
        dim vstatus as C
        
        if convert_type(received_time,"c")<>"00/00/0000 12:00:00 00 am"
        	if convert_type(enroute_time,"c")<>"00/00/0000 12:00:00 00 am"
        		 if convert_type(arrival_time,"c")<>"00/00/0000 12:00:00 00 am"
        			if convert_type(Departure_Time,"c")<>"00/00/0000 12:00:00 00 am"
        				vs="FULL"
        			else
        				vs="empty"
        			end if
        		end if
        	end if
        end if
        
        msgbox(vstatus)
        Mike W
        __________________________
        "I rebel in at least small things to express to the world that I have not completely surrendered"

        Comment


        • #5
          Re: If then questions.

          Good job mike.

          The if is a little confusing at first. It needs to be understood because it is used in just about any coding on any level anywhere. You use it in everyday life too, such as, "if you go do this, I will go do that, or the other".

          It goes like:

          Code:
          If "joe likes Jill"  then     
             answer = "jane is done"
          else
             answer = "jane has a chance"
          end if
          
          ' now if used in a different place
          
          
          answer = if("joe likes jill" , "jane is done", "jane has a chance")
          now this can be used with dates, math, character, etc with proper setup

          Also look at:

          select case
          Dave Mason
          dave@aldadesktop.com
          Skype is dave.mason46

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