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Cannot read Excel file

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  • Cannot read Excel file

    I am trying to use a grid to read an Excel file. I seem to be able to link to it through AlphaDAO but when I click on the Fields there are no fields listed. Has this been removed? I remember I was able to read and change Excel data in my V10.5 application.

    -John

  • #2
    Re: Cannot read Excel file

    Actually it doesn't work in 10.5 either. I went back to version 9 and it works fine. Doing some more searching I found this in some upgrade notes from Alpha:

    Version 10.5* - Build 3616-3623* Nov- 11-2010
    AlphaDAO - Excel - TableInfo - Getting a tableinfo on a table in an Excel file was broken by a change in a recent update. This is now fixed. The bug would have affected importing from Excel using AlphaDAO.

    So it looks like it used to be broken, then was fixed, but now it appears to be broken again.

    Would someone be kind enough to link to an Excel file and see if you get the list of fields? I appear to be able to link to it, when I click "Test Connection" it says "Succeeded" but when I go to list the fields there is nothing there. See pics. below.

    Thanks

    -John
    Attached Files

    Comment


    • #3
      Re: Cannot read Excel file

      John

      It would be better if you attached an excel file that doesn't work for you.

      Keep it small and simple.
      Al Buchholz
      Bookwood Systems, LTD
      Weekly QReportBuilder Webinars Thursday 1 pm CST

      Occam's Razor - KISS
      Normalize till it hurts - De-normalize till it works.
      Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
      When we triage a problem it is much easier to read sample systems than to read a mind.

      Comment


      • #4
        Re: Cannot read Excel file

        John,

        I learn so much by just reading this board! Never even tried to use an Excel file as a table: whaaw! That said: I tested with some file & it works for me but when I create a blank file & just copy & paste an area some stuff from the first then I can't get it to work. In the sheet that works I notice that if I select the system table I don't get anything either but if I select some other table it works (whenever there are no empty brackets at the end of the table/view name) There must be some way to indicate that the data in your excel sheet is a table somehow. Irecognize some of the "tables" in the screenshot below as lookups from a deleted worksheet in that file. Don't know, not an excel/odbc guru and no intention to become one

        exc.png
        Frank

        Tell me and I'll forget; show me and I may remember; involve me and I'll understand

        Comment


        • #5
          Re: Cannot read Excel file

          Hi Al. I will do that but it happens on all my Excel files. I will attach one that I've been trying the most.
          Attached Files

          Comment


          • #6
            Re: Cannot read Excel file

            Hi Frank, thanks for trying this out. The files I have been attempting to use have been created elsewhere and passed along to me and there is usually no more than one sheet and like you mention, that sheet keeps coming up in A5 with empty brackets and hence, no data. It's strange that it works in version 9 but not 10.5 or 11.

            Comment


            • #7
              Re: Cannot read Excel file

              Update: It appears you have to use a SQL Select Statement. There is an article here http://nebula-rnd.com/blog/tech/2007/10/sql-with-excel01.html that explains it a little more. I never had to do this in V9 and I hope it's a bug because I don't want to have to do it each time but at least it seems to work.

              So, the Excel sheet is called IEP_504_qry and in order to use it I need to create a SQL Select Statement of SELECT * FROM [IEP_504_qry$]

              Bug?

              -John

              Comment


              • #8
                Re: Cannot read Excel file

                So why then does it work with my file ? (attached)
                Attached Files
                Frank

                Tell me and I'll forget; show me and I may remember; involve me and I'll understand

                Comment


                • #9
                  Re: Cannot read Excel file

                  Hmmm... I don't know. When I look at your XL file I see only one worksheet called Test but when I link to it via AlphaDAO I see several "tables" there also. Those other tables I can get to and put fields onto my grid, but the one I can't get to work in your XL is the one with the same name as the worksheet TEST. Did you try the XL file I posted?

                  Thanks for helping with this.
                  Attached Files

                  Comment


                  • #10
                    Re: Cannot read Excel file

                    Found it: You need to name a range.

                    Of the various objects available in a relational database (tables,views, stored procedures, and so forth), an Excel data source exposes only table equivalents, consisting of the worksheets and the named ranges defined in the specified workbook. Named ranges are treated as "Tables" and worksheets are treated as "System Tables,"

                    Also see http://us.generation-nt.com/excel-ta...133133751.html
                    Frank

                    Tell me and I'll forget; show me and I may remember; involve me and I'll understand

                    Comment


                    • #11
                      Re: Cannot read Excel file

                      Hi Frank,

                      Yep, see my post #7. The way around it is to create a SQL Select Statement and use select * from [SheetName$]. Didn't need to do that in V9 but appears it's needed in V11.

                      Thaks for checking it out with me, keeps my sanity intact :)

                      Comment


                      • #12
                        Re: Cannot read Excel file

                        John,

                        I did not use a SQL statement just the connection string. In the excel file I selected some area, right clicked on it & selected "define name" and named it.
                        TEST is not exposed as a table in the sample file because there is no range linked to it? Typical ODBC/Excel stuff I guess
                        Frank

                        Tell me and I'll forget; show me and I may remember; involve me and I'll understand

                        Comment


                        • #13
                          Re: Cannot read Excel file

                          Jerry at Alpha has confirmed this is a bug and a fix will be in the next release.

                          -John

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