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Size Limit

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    Size Limit

    MS Access has a 2 Gigabyte size limit. Is there a corresponding size limit on Alpha five version 5? thanks, RICK NEIFELD.

    Rick Neifeld, Ph.D. Patent Attorney
    President, Neifeld IP Law, PC and StockPricePredictor.com, LLC
    2001 Jefferson Davis Highway, Suite 1001
    Arlington, VA 22202
    Tel: 703-415-0012
    Fax: 703-415-0013
    Email: [email protected]
    www.Neifeld.com and www.PatentValuePredictor.com

    #2
    RE: Size Limit

    Hi Rick,
    Are you asking about the size limit of an entire application? I don't believe there is any size limit to how large a file can be.

    Are you thinking of using Alpha? If you are, and have used other database software, I think you'll find that it much more powerful and easier to learn and use.

    Wanda

    Comment


      #3
      RE: Size Limit

      I believe the 2 gig upper limit is a file size limit imposed by windows rather than any specific program.

      I'll be set straight soon enough if I'm wrong.

      Bill
      Bill Hanigsberg

      Comment


        #4
        RE: Size Limit

        Even if a 2 gig file size limit were imposed by windows, it would not affect Alpha as much as Access due to the fact that all tables are internal to 1 file in access and are seperate files in Alpha.

        Dave
        Dave Mason
        [email protected]
        Skype is dave.mason46

        Comment


          #5
          RE: Size Limit

          2 GIG is not a windows based limit. It's due to the nature of access, limited to 16 bit architecture. SQL Server and the like are 32 bit architecture so they handle 2 to the power 64 amount of addresses. Access will handle only 2 to the power 32 amount of addresses.

          Is Alpha a 16 bit or a 32 bit program?

          Also, can anyone comment on Alpha five's ability to handle XML data? (I am not a professional programmer. I am a patent attorney with a pretty good working knowledge or Access and VBA, and I am a little weak on what a database needs to handle XML data). I have an upcoming application that needs to store in a single database XML data from various sources. thanks, RICK

          Rick Neifeld, Ph.D. Patent Attorney
          President, Neifeld IP Law, PC and StockPricePredictor.com, LLC
          2001 Jefferson Davis Highway, Suite 1001
          Arlington, VA 22202
          Tel: 703-415-0012
          Fax: 703-415-0013
          Email: [email protected]
          www.Neifeld.com and www.PatentValuePredictor.com

          Comment


            #6
            RE: Size Limit

            Doesn't matter what the pedigree of Alpha is. Alpha uses a dbase iii/iv compatible file specification. That seems to be the limiting factor.
            There can be only one.

            Comment


              #7
              RE: Size Limit

              Try

              "PRE"http://msgboard.alphasoftware.com/alphaphorum/read.php3?sortby=lastreply&direction=desc&num=11&id=24023&thread=24023"/PRE"

              all one line, previous discussion in this forum.

              Comment


                #8
                RE: Size Limit

                dump the "PRE" and "/PRE" tags from the previous post.

                Comment


                  #9
                  RE: Size Limit

                  Rick,

                  Alpha Five uses the DBF format for its tables. (Foxpro 2.6 I believe, to be specific). This format includes 4 bytes in the table header for the current record count. The largest 4 byte number is 2 gigs.

                  -- tom

                  Comment


                    #10
                    RE: Size Limit

                    Lots of answers, I'm not sure if everything is clear here. Because Alpha uses the .dbf structure, the max size of any one dbf, or table, is 2 gigs. However, since an Alpha database can hold many dbfs as well as many relationship setups (sets), there is no definite size limit to a database.

                    Let me know if I can be of further help to you -- I'm just an hour away in the West Virginia panhandle.

                    - Steve
                    -Steve
                    sigpic

                    Comment


                      #11
                      RE: Size Limit

                      From the last two responses, it appears that Alpha five can address 2 billion records per table. If each record in the table stores for example a kilobyte of data, that is a lot of data! If my understanding that Alpha five can address 2 billion records per table and therefore store in each table a lot more than 2 Billion bits or bytes is INCORRECT, please somebody holler back at me. thanks, RICK

                      Comment


                        #12
                        RE: Size Limit

                        Rick,

                        This is a largely theoretical question. Depending upon what operating system you're using there is a maximum size limitation on a "file". I do not think Windows (at least the 32 bit variants) will handle a single "file" that's larger than 2 gigs.

                        If you will be working with an application that will have tables with up to 2 gigs of records, I think you'll hit the operating system file size limit long before you hit the DBF file format (record count) restriction. I also think you should be spending a lot more money to buy a database management and development tool appropriate to such a large scale enterprise.

                        -- tom

                        Comment


                          #13
                          RE: Size Limit

                          To put the 2 gig file limitation into perspective: I have an app that been running at a client site for 9 months now. The largest files are the invoice history files, specifically the invoice history line file. The customer produces about 500 invoices a months; the line record size is 158; average lines per invoice are approximately 12. After nine months, the line file is just over 16 megs.

                          If my calculations are right, my guess is that sometime within the next 100 years�..this is going to be problematic�..assuming they grow a little.

                          Comment


                            #14
                            RE: Size Limit

                            Tom - My question is not at all theoretical; it is core to my application. Windows NTFS (both flavors) file size limit is 2TB, not 2 GIG. My applicat ion has several million records each one corresponding to a patent number. Each record (each patent number), depending upon what data we import, can be tens of bytes to thousands of bytes. Hence, my application is boo big for MS Access because it has a 2 GIG file size limit, and it stores all data for an application in one file. If the number of records limit per table in Alpha five is 2 gigabytes, it can easily handle my project. If the FILE SIZE limit in Alpha five is 2 gigabytes, it can't possibly handle my project. As I said, my question is practical, not theoretical.

                            If anyone knows the answer to the question of which limit the 2 GIG limit in Alpha five pertains; a 2 GIG limit to the number of addressable records per table or a 2 GIG limit on the size of a file, please advise. thanks, RICK

                            Rick Neifeld, Ph.D. Patent Attorney
                            President, Neifeld IP Law, PC and StockPricePredictor.com, LLC
                            2001 Jefferson Davis Highway, Suite 1001
                            Arlington, VA 22202
                            Tel: 703-415-0012
                            Fax: 703-415-0013
                            Email: [email protected]
                            www.Neifeld.com and www.PatentValuePredictor.com



                            Comment


                              #15
                              RE: Size Limit

                              Tom - My question is not at all theoretical; it is core to my application. Windows NTFS (both flavors) file size limit is 2TB, not 2 GIG. My applicat ion has several million records each one corresponding to a patent number. Each record (each patent number), depending upon what data we import, can be tens of bytes to thousands of bytes. Hence, my application is boo big for MS Access because it has a 2 GIG file size limit, and it stores all data for an application in one file. If the number of records limit per table in Alpha five is 2 gigabytes, it can easily handle my project. If the FILE SIZE limit in Alpha five is 2 gigabytes, it can't possibly handle my project. As I said, my question is practical, not theoretical.

                              If anyone knows the answer to the question of which limit the 2 GIG limit in Alpha five pertains; a 2 GIG limit to the number of addressable records per table or a 2 GIG limit on the size of a file, please advise. thanks, RICK

                              Rick Neifeld, Ph.D. Patent Attorney
                              President, Neifeld IP Law, PC and StockPricePredictor.com, LLC
                              2001 Jefferson Davis Highway, Suite 1001
                              Arlington, VA 22202
                              Tel: 703-415-0012
                              Fax: 703-415-0013
                              Email: [email protected]
                              www.Neifeld.com and www.PatentValuePredictor.com



                              Comment

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