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Report to print specific dbf fields to text file

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  • Report to print specific dbf fields to text file

    Thanks to Billy disavowing winxp recently, I'm trying to move an existing dbf, reports and forms over from A4v8. I have the main form and one report cloned successfully. The mission: I'm trying to print content of exactly 34 fields over to a text file, in a standard order, one field per line. This worked fine in A4, and my program in basic could use a simple batch of input C$ statements in a predictable manner, so Firstname, Lastname, Landline, CellNumber would end up in the correct strings, ready for my manipulations on them to ultimately create an LDIF file.

    Doing the same report in A5V12, I get the data moved up or down into different/wrong strings. Empty fields simply disappear. I worked around that by creating a calc field in the report with a "." inserted if the dbf field happens to be empty. That helps some. The next trick was to try a dummy field at the top of each record to put the word "Start" as the first field for each record in the report. That got me:

    Start
    StartStart
    FirstName
    LastName
    .
    . etc for the first record. The next 3 records have:

    Start
    FirstName
    LastName
    .
    . etc Then it seems to loop back and do it all again.

  • #2
    Re: Report to print specific dbf fields to text file

    Using a report to create a text file probably isn't the best approach.

    Code:
    tbl = table.open("your_table_name")
    tbl.order("field1+field2") 'replace field1+field2 with your desired ordering field or fields
    tbl.fetch_first()
    fil = file.create("outputfilename",FILE_RW_EXCLUSIVE) 'outputfilename should include path, name, and extension
    while .not. tbl.fetch_eof()
    	fil.write_line(tbl.field1) 'replace field1 with actual field name
    	fil.write_line(tbl.field2) 'replace field2 with actual field name
    	fil.write_line(tbl.field3) 'etc
    	fil.write_line(tbl.field4)
    	fil.write_line(tbl.field5)
    	....
    	....
    	fil.write_line(tbl.field34)
    	tbl.fetch_next()
    end while
    fil.flush()
    fil.close()
    tbl.close()
    There can be only one.

    Comment


    • #3
      Re: Report to print specific dbf fields to text file

      Now to change the rules...
      I wish to filter the file to only show records where the "Inactive" field is <> "Y" .AND. "VolAppDate" field >"" I've been surfing and playing with this for several days, getting nowhere fast.

      Got your code working well, thanks Stan!

      Comment


      • #4
        Re: Report to print specific dbf fields to text file

        Moving from the dos days to windows is a real trip in learning.
        As with most of the people here, I will extend help as you need it.
        Stan is a great help to ALL of us, but many of the things you will be required to do can be handled by using the tools to build your queries, reports, and more. Then you can have the option to get the xbasic code and modify it as needed or wanted. That is how many others do it and then show you the generated code as thought they wrote it(this does not apply to stan and some others).
        I am available by clicking my name and email or call me. I think it is posted.
        Dave Mason
        dave@aldadesktop.com
        Skype is dave.mason46

        Comment


        • #5
          Re: Report to print specific dbf fields to text file

          tbl = table.open("your_table_name")
          tbl.query_create("N","Inactive = 'Y' .and. isnotblank(\"VolAppDate\")")
          tbl.fetch_first()

          The rest stays the same.

          tbl.query_create("N","Inactive = 'Y' .and. isnotblank(\"VolAppDate\")"[,"optional order expression would go here"])
          There can be only one.

          Comment


          • #6
            Re: Report to print specific dbf fields to text file

            Here is what I now have:

            tbl = table.open("APBVOLS")
            idx=tbl.order("name_sort")

            tbl.query_create("N","inactive<>'Y' .and. isnotblank("volcontrct")")

            tbl.fetch_first()
            '
            fil=file.create("H:\\A4Docs\PassVols.txt",FILE_RW_EXCLUSIVE)
            '
            while .not.tbl.fetch_eof()
            tbl.fetch_next()

            tbl.query_create line now has a red squiggly at front end with "Bad expression character" lurking when I roll over it...

            Comment


            • #7
              Re: Report to print specific dbf fields to text file

              tbl.query_create("N","inactive<>'Y' .and. isnotblank("volcontrct")")

              is not what I gave you. Quotes inside quotes are verboten. See the documentation for backslash.

              Forget the table.order() line. Use the second suggestion if you want an order specified.

              tbl = table.open("APBVOLS")
              tbl.query_create("N","inactive<>'Y' .and. isnotblank(\"volcontrct\")","name_sort")
              There can be only one.

              Comment


              • #8
                Re: Report to print specific dbf fields to text file

                tbl = table.open("APBVOLS")

                'tbl.query_create("N","inactive<>'Y' .and. isnotblank(\"Volcontrct\")","Name_sort")
                'tbl.query_create("N","inactive<>'Y' .and. isnotblank(\"Volcontrct\")")
                'tbl.query_create("N","inactive<>'Y'","Name_sort")
                tbl.query_create("N","inactive<>'Y'")
                'tbl.query_create("N","inactive<>'Y' .and. len(\"Volcontrct\")=10")

                tbl.fetch_first()

                fil=file.create("H:\\A4Docs\PassVols.txt",FILE_RW_EXCLUSIVE)

                while .not.tbl.fetch_eof()
                tbl.fetch_next()

                This is working, sort of... Trick is it's not passing all of the records through that DO meet the requirements! I've tried various versions of the filtering part of the query_create line, and the one that's not commented out is the closest to working, but they all get less than the actual records they should. The first one that checks for blank volapps really clobbers the total number of records passed through, about half the number the other versions pass...

                Comment


                • #9
                  Re: Report to print specific dbf fields to text file

                  'tbl.query_create("N","inactive<>'Y'","Name_sort")
                  tbl.query_create("N","inactive<>'Y'")
                  These are equivalent and return the same number of records but in different order.

                  The first one that checks for blank volapps
                  None check for blank volapps. They check for blank Volcontrct.
                  There can be only one.

                  Comment


                  • #10
                    Re: Report to print specific dbf fields to text file

                    Agreed on the sort order, and I later found my basic program handles the order, so that doesn't matter here.

                    The volcontrct was my terrible choice for a field name in this database, many years back. It really is the date on which our vols filled out our application form. Volcontrct really is a date field in the dbf, MO/DY/YR format.

                    Comment


                    • #11
                      Re: Report to print specific dbf fields to text file

                      Testing blank date fields is probably better done another way.

                      'tbl.query_create("N","inactive<>'Y' .and. alltrim(cdate(volcontrct)) = '' ","Name_sort")


                      alltrim(cdate(volcontrct)) = '' <--two single quotes at the end
                      There can be only one.

                      Comment


                      • #12
                        Re: Report to print specific dbf fields to text file

                        tbl = table.open("APBVOLS")

                        ' For reference, there are really 6 BMs (Board Members) in our group. All have "N" in "Inactive" field
                        ' and "Volcontrct" field has a date...
                        '
                        'tbl.query_create("N","inactive<>'Y' .and. isnotblank(\"Volcontrct\")","Name_sort") 'Yields 2 BMs
                        'tbl.query_create("N","inactive<>'Y' .and. isnotblank(\"Volcontrct\")") 'Yields 1 BM
                        'tbl.query_create("N","inactive<>'Y'","Name_sort")' Yields 4 BMs
                        'tbl.query_create("N","inactive<>'Y'")' Yields 1 BM
                        'tbl.query_create("N","inactive<>'Y' .and. len(\"Volcontrct\")=10")' Yields 1 BM
                        tbl.query_create("N","inactive<>'Y' .and. alltrim(cdate(Volcontrct))= ''","Name_sort")'Yields 0 BMs

                        tbl.fetch_first()

                        fil=file.create("H:\\A4Docs\PassVols.txt",FILE_RW_EXCLUSIVE)

                        while .not.tbl.fetch_eof()
                        tbl.fetch_next()

                        Comment


                        • #13
                          Re: Report to print specific dbf fields to text file

                          Al, the msg board supports private emails. Check and adjust your profile to receive and send them. You can also specify your skype handle if you want. Many of us use skype to talk with one another. If you need additional help you can private msg me here. Or contact me on skype. - tom cone jr

                          Comment


                          • #14
                            Re: Report to print specific dbf fields to text file

                            Al, when searching for blank date fields, I prefer to use the DTOS() function, instead of DTOC(), for the following reason:

                            Code:
                            [FONT=Courier New][SIZE=4]dim curr_date as D 
                            
                            ?alltrim(dtoc(curr_date))
                            
                            = "/  /"
                            
                            
                            ?alltrim(dtos(curr_date))
                            
                            = ""[/SIZE][/FONT]

                            Comment


                            • #15
                              Re: Report to print specific dbf fields to text file

                              tbl = table.open("APBVOLS")
                              ' For reference, there are really 6 BMs (Board Members) in our group. All have "N" in "Inactive" field
                              ' and "Volcontrct" field has a date...
                              '
                              'tbl.query_create("N","inactive<>'Y' .and. isnotblank(\"Volcontrct\")","Name_sort") 'Yields 2 BMs
                              'tbl.query_create("N","inactive<>'Y' .and. isnotblank(\"Volcontrct\")") 'Yields 1 BM
                              'tbl.query_create("N","inactive<>'Y'","Name_sort")' Yields 4 BMs
                              'tbl.query_create("N","inactive<>'Y'")' Yields 1 BM
                              'tbl.query_create("N","inactive<>'Y' .and. len(\"Volcontrct\")=10")' Yields 1 BM
                              'tbl.query_create("N","inactive<>'Y' .and. alltrim(cdate(Volcontrct))= ''","Name_sort")'Yields 0 BMs
                              'tbl.query_create("N","inactive<>'Y' .and. alltrim(dtos(Volcontrct))= ''","Name_sort")'Yields 0 BMs

                              tbl.fetch_first()

                              fil=file.create("H:\\A4Docs\PassVols.txt",FILE_RW_EXCLUSIVE)

                              while .not.tbl.fetch_eof()
                              tbl.fetch_next()

                              In case it's not clear above, I've rerun each of the tbl.query_create lines above, then run my old basic program using the resulting text file, and then added a comment at the end of the query line, showing how many board members it found, of the 6 actual board members. The same basic program works correctly on an old Passvols text file created from the A4v8 version.

                              Comment

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