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I'm Stumped

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  • I'm Stumped

    Hello:

    I have a table that has the following fields:

    Teacher
    Room Number
    Number of Students

    I want to create a form that shows a "map" of what teacher is in what room. when I make it, only the first teacher record shows up, and then as you scroll through the records the next teacher and so on.

    What I really want to do is take the records from the original table - create an operation that creates a new table with one record that has for example teacher1, room1, number of students1, teacher2, room number2, number of students2, etc.

    I have looked through the different operations, but can't seem to find the right operation.

    Does this make sense or am I so stumped that I can't even explain it?

    Thanks,

    Greg

  • #2
    RE: I'm Stumped

    in V4 there is no "concatenate text across records" built in function.

    Here's a homemade function.

    'Date Created: 02-Mar-2005 02:29:08 PM
    'Last Updated: 02-Mar-2005 02:29:08 PM
    'Created By : Stan Mathews
    'Updated By : Stan Mathews
    FUNCTION con_text AS C (fldname AS C )
    'usage is context("fieldname")
    'returns a space separated string of field values for a character field
    desc = ""
    tbl = table.open("dcavail")'sub your table name here
    tbl.fetch_first()
    debug(1)
    while .not. tbl.fetch_eof()
    desc = desc + eval("tbl."+fldname) + " "
    tbl.fetch_next()
    end while
    con_text = desc
    tbl.close()
    END FUNCTION

    By the way, there are built in functions in V% to do the same thing.
    There can be only one.

    Comment


    • #3
      RE: I'm Stumped

      If you'll attach a small sample of your table here I'll customize the function to do exactly what you requested.
      There can be only one.

      Comment


      • #4
        RE: I'm Stumped

        Or try this .....

        'Date Created: 02-Mar-2005 02:29:08 PM
        'Last Updated: 02-Mar-2005 02:41:22 PM
        'Created By : Stan Mathews
        'Updated By : Stan Mathews
        FUNCTION cls_str AS C ( )
        'syntax is Character Formatted_String_of_data = cls_str()
        'sample return value is "Mary, 304, 17, John, 310, 22, Paul, 301, 25, Barbara, 287, 19"
        desc = ""
        tbl = table.open("classes") 'sub your table name here
        tbl.fetch_first()
        while .not. tbl.fetch_eof()
        'field names in my table are teacher, room, and stu_count
        'adjust the next line to fit your field names
        desc = desc + alltrim(tbl.teacher) + ", "+tbl.Room+", "+tbl.Stu_count+", "
        tbl.fetch_next()
        end while
        cls_str = left(desc,-2)
        tbl.close()
        END FUNCTION
        There can be only one.

        Comment


        • #5
          RE: I'm Stumped

          Stan:

          I appreciate the time you have taken to help me. I have attached a picture that shows the current database.

          Some explanation is needed however. I misunderstood what my friend was saying. I thought he was using a different application, but the need is still pretty much the same. I wasn't being deceptive.

          In the database, this will be some sample records in the field order the picture shows:

          5010,A-15,1,425,18650,02/02/05,03/01/05,Retired (this value appears if "day_out" has a day in it),28.

          5010,A-15,3,430,19210,02/02/05,03/01/05,Retired,28.

          What I want is a table that in one record will list all these records.

          If it is too much work, I understand.

          Comment


          • #6
            RE: I'm Stumped

            Stan:

            Picture didn't attach. Trying again.

            Greg

            Comment


            • #7
              RE: I'm Stumped

              Stan:

              Picture won't attach. Here is the structure.

              Crop_Number N 4 0
              Strain C 5
              Room_1 N 2 0
              Room_1_Trays N 3 0
              Room_1_Footage N 10 3
              Day_in D 8
              Day_out D 8
              Retired C 8
              Days_in_Production N 8 0

              Sorry,

              Greg

              Comment


              • #8
                RE: I'm Stumped

                Not sure that I understand "What I want is a table that in one record will list all these records."

                How can one record list other records?

                I can build you a function to concatenate the values in the fields and write that concatenation to another table but unless it is stored in a memo field the length of the string will overwhelm the 255 character limit in under 5 records.

                If the string is stored in a memo field, what portion of the string should be written to a "real" field to identify the record? Or will there be only one record with one memo field.

                Guess I need some more clarification of your intent.
                There can be only one.

                Comment

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