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Age in months of birth date to age in futrue

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    #1

    Age in months of birth date to age in futrue

    I am not experienced in code and need some help.
    On a form I want an input field labeled �As of Date�. A date sometime in the future (like 01/26/2011) will be entered. On another form you enter a birth date in a field and in another field it will show the age in months-the birth date and age are to be stored in a table.

    I have found several examples of calculation age on the message board, but none seem to work the way I envision.

    Any help would be appreciated.
    Thanks
    Jim
    Tags: None
    #2
    Re: Age in months of birth date to age in futrue

    Jim, I am not clear on what you need. Where does the future date fit in? What is the calculation that you are expecting?

    Later: You might see thread that relates to your needs:
    http://msgboard.alphasoftware.com/al...ghlight=months
    Mike W
    __________________________
    "I rebel in at least small things to express to the world that I have not completely surrendered"

    Comment

      #3
      Re: Age in months of birth date to age in futrue

      The future date is a date set by the show that the animals age is to be calculated from. Example: Show date is 01/26/2011.
      The animal age is to be calculated as of that date. The animal birth date is 06/12/2008-so the animal's age is 31 months of age on 01/26/2011.

      On a form called "Show" you set up the show with name of show and the date of show etc: On a another form called "Entry form" you fill in all of the information about the animal including it's birth date - after it's birth date is entered, another filed is populated with the age in months based on the show date.
      Hope is clear
      Jim

      Comment

        #4
        Re: Age in months of birth date to age in futrue

        Jim, how do you count months? i.e. what's the definition of a month, and how are fractional months considered?

        Comment

          #5
          Re: Age in months of birth date to age in futrue

          Example:
          Birth date 06/12/08
          on 06/12/09 = 12 months
          on 06/12/10 = 12 months
          then there are 7 months until 01/12/2011
          so on 01/26/2011 animal is 31 months of age. Or to be exact 31 months and 14 days- however we don't consider the 14 days. It want be 32 months until 2/12/2011. Fractual months are not considered in age.
          Jim

          Comment

            #6
            Re: Age in months of birth date to age in futrue

            animal_age=12*(year(show_date)-year(DOB)+month(show_date)-month(DOB)+if(day(DOB)>=day(show_date),1,0)

            Comment

              #7
              Re: Age in months of birth date to age in futrue

              Code:
              animals_age=12*(year(show_date)-year(DOB)[B][COLOR="Red"][SIZE="4"])[/SIZE][/COLOR][/B]+month(show_date)-month(DOB)+if(day(DOB)>=day(show_date),1,0)
              somehow this is like de ja vu....
              Mike W
              __________________________
              "I rebel in at least small things to express to the world that I have not completely surrendered"

              Comment

                #8
                Re: Age in months of birth date to age in futrue

                The calculated field for animal_age produces errors when using the formula--
                animals_age=12*(year(show_date)-year(DOB))+month(show_date)-month(DOB)+if(day(DOB)>=day(show_date),1,0
                In the table-if the type of DOB is a date and show_date is a date, what type is the results?

                what am I doing wrong?
                Jim

                Comment

                  #9
                  Re: Age in months of birth date to age in futrue

                  +if(day(DOB)>=day(show_date),1,0)


                  In the table-if the type of DOB is a date and show_date is a date, what type is the results?
                  Number, but your fields are character, not date type.
                  Last edited by Stan Mathews; 01-28-2010, 03:04 PM.
                  There can be only one.

                  Comment

                    #10
                    Re: Age in months of birth date to age in futrue

                    The results will be a number- correct?
                    All of the field types in the table are character.
                    and the formula is:
                    animals_age=12*(year(show_date)-year(DOB))+month(show_date)-month(DOB)+if(day(DOB)>=day(show_date),1,0)

                    Still can't get it to work.
                    Jim

                    Comment

                      #11
                      Re: Age in months of birth date to age in futrue

                      Jim,

                      Let's take this real slow.

                      The year(), month(), and day() functions operate on date values.
                      The year(), month(), and day() functions do not operate on character values.
                      The year(), month(), and day() functions operate on date values.
                      The year(), month(), and day() functions do not operate on character representations of date values.

                      The return value is numeric. You can't put that in a character field.


                      Any more questions?
                      There can be only one.

                      Comment

                        #12
                        Re: Age in months of birth date to age in futrue

                        Thanks for your help and yes I am alittle slow.
                        I have tried with the show_date and DOB as type "date"
                        and the animals_age as "numeric".
                        When you add your formula in the expression for a calculated field for animal_age you get an error of "invalid or incomplete expression"
                        Jim

                        Comment

                          #13
                          Re: Age in months of birth date to age in futrue

                          When you add your formula in the expression for a calculated field for animal_age you get an error of "invalid or incomplete expression"
                          Not in my attachment.

                          You do know that when defining a calculated expression for the animals_age field you do not put in the

                          animals_age=

                          portion of the expression. All you need is


                          12*(year(show_date)-year(DOB))+month(show_date)-month(DOB)+if(day(DOB)>=day(show_date),1,0)


                          You may be getting the invalid expression because

                          animals_age=12*(year(show_date)-year(DOB))+month(show_date)-month(DOB)+if(day(DOB)>=day(show_date),1,0)

                          evaluates to a logical true or false.
                          There can be only one.

                          Comment

                            #14
                            Re: Age in months of birth date to age in futrue

                            Thanks Stan
                            I had the fields type right, but was using animal_age= in the expression. Had a senior moment.
                            It worked fine.
                            Thanks
                            Jim

                            Comment

                              #15
                              Re: Age in months of birth date to age in futrue

                              Had a senior moment.
                              Amen to that. This is starting out to be a whole senior year for me.
                              There can be only one.

                              Comment

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