How can I read an XLS file from VB6? I don't want to use ADO or Automation.
ADO isn't going to work for my particular XLS files, because it guesses the data types of the columns from the data in the first few rows.
Automation is out, because Excel may not be installed on the machine.
I'm hoping for recommendations based on experience - I know how to Google :)
ADO
For IMEX=1 setting HKLM\SOFTWARE\Microsoft\Jet\4.0\Engines\Excel\TypeGuessRows to 0 does miracles. I'm wondering if this can be supplied as a parameter of the connect string.
To make the ADO driver a bit more reliable, you can use add two pieces to your connection string:
Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\blah.xls;Extended Properties="Excel 8.0;HDR=YES;IMEX=1;MAXSCANROWS=12"
That will force the driver to scan 12 rows before making a decision on data types.
Related
I have a few SAS programs that I need to run from excel. The programs pull tables from SQL, perfom some calculations and give an output table that I would like to present in Excel. So I figured that it would be great to run everything in excel.
There are a few parameters in the code that need to be changed before running, so the best idea I had is to put the SAS scripts in cells on an excel sheet and change the variables with VBA.
My question is, is this achievable? Can I connect to SAS and do everything from excel?
I'm fairly good with VBA, starting to learn SAS, but I don't really know how to connect the two. Thank you for your help!
Yes it is possible , i did this in my work a week ago , SAS have an documentation here?
The link below can help you.
http://documentation.sas.com/api/docsets/itechwcdg/9.4/content/itechwcdg.pdf?locale=en
You can use ADODB to connect to , see here for the strings
https://www.connectionstrings.com/sas/
Your options are:
1) use VBA to connect to IOM, create a workspace, run your program.
This requires quite a bit of VBA, as well as the SAS Addin for MSO, and various components.
2) Run a Stored Process (STP) via point and click using the MSO addin
Again, this requires a desktop SAS Addin deployment, and isn't scriptable with VBA
3) Run a Stored Process as a web query
This is an excellent option - you don't need any special desktop installation, you can easily add (url) parameters, you can use it with / without VBA, and your output will render easily into your worksheet so long as you stream tab delimited data via the _webout fileref (without %stpxxx macros). It will also work with all versions of excel and SAS.
This approach is described here: https://www.rawsas.com/sas-as-a-service-an-easy-way-to-get-sas-into-excel-power-bi-and-000s-of-other-tools-languages/
ADO.NET works fine when it comes to reading tabular data from excel files, but one problem I often run into is that if the excel file is locked by some other user there is an exception when ADO.NET attempts to retrieve the data.
Is it possible to tell ADO.NET to read contents from the excel file even if it's locked? If so, how can it be done? Do I need to add something to the connection string? The extended properties of my connection string are:
Excel 12.0;HDR=YES;IMEX=1
I had similar problem and I could not find a solution. I ended it up with timer re-trying to connect to a file.
The problem lies in the database itself. In the end of the day it is only a flat file and ADO requires exclusive access to it. You probably need to migrate your solution to MS Access mdb file or a proper(ish) database (SQLite?)
HI;
I cannot connect a CSV file to a SpreadSheet when the file is open. Currently a have a csv log file that is being constantly updated. I was able to connect it a an Excel SpreadSheet by normal import from external source with refresh every hour. However, its a big file so I needed to produce the reports using EXCEL SQL. It will not allow me to connect to the file while it is open. It says that the MS Jet database engine cannot open the file'unknown'. It is already opened exclusively by another user or i need permission to view its data. If granting permission is he problem , where do I grant myself permission. On a standard Impor, I have no problems reading the file while it is open, but otherwise, get this message and cannot proce3ed. Any help would be appreciated. If I close the update program, I am able to run the queries, but not if the update is running.
Using MSO 2007 W7 x64
It will not allow me to connect to the file while it is open.
That's right, it won't - there is no way to change this.
You must find another way to solve your problem.
How big is the file? You may be able to make a copy to a temporary filename, and connect Excel to that instead.
It sounds like you are accessing a logfile. LogParser can read CSV. In any case LogParser has an excellent SQL-like syntax and can read CSV files much more quickly and reliably than ODBC. It is also programmable from Excel VBA (or script). Perhaps you can use LogParser to extract the values of interest and then load those into your Excel table instead.
I suspect your best solution will be to use the LogParser MSUtil.LogQuery object from Excel VBA, to extract the values of interest into your spreadsheet. Since I don't know what you are actually doing this is just a guess!
I cannot recommend LogParser highly enough - it is a wonderful tool, and can read just about every standard type of logfile, CSV, TSV, W3C, as well as plain text files and the windows NT event logs:
LogParser 2.2 Download: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=890cd06b-abf8-4c25-91b2-f8d975cf8c07&displaylang=en
My employer is considering installing OpenOffice.org's suite of Office products instead of using Microsoft Office. I've written several advanced applications in Access and Excel, and I'm trying to figure out what will and will not be compatable with OpenOffice.org.
Specifically, what do I need to do to have Calc (OpenOffice.org's version of Excel) read and execute VBA in macro's and tie macro events to button clicks?
Also of note, I'm using the MySQL Connector from within Excel to dynamically update data in the spreadsheet. What might I need to do to preserve data connectivity to our MySQL server?
Thanks
As far as I know, OOo Base can connect to an mdb file to the extent that it can open tables and queries. I think anything else - forms, reqportes, macros VBA and native - would need to be redeveloped.
I don't believe that OOo Calc can read or execute VBA: it has its own dialect of Basic, which has a variant syntax. It doesn't, as far as I can tell, support the concept of Class, for example. Some work appears to be occurring, however, see the OpenOffice Wiki for more information. Right now, I'd say you should be planning on a careful and complete rewrite.
Regarding the MySQL connector - I'd say that's the least of your worries...
On the plus side, you're likely to have real job security for a year or two while you get everything ported!
I recently discoverd go-oo which seems to be able to achieve your task.
I know this has a certain "send me teh codes" quality, but the internet has really been letting me down on this one. I have an excel file in excel 2003's xml format that I want to attach an odbc connection to.
And I can't seem to find the right connection string. connectionstrings.com has let me down, and other questions here on SO (such as this) also don't cover this file type. And, of course, neither the binary xls connection nor the new xlsx connection seem to work?
Does anyone out there know the right syntax? IS there an odbc driver for excel 2003 xml?
Thanks, all.
Driver={Microsoft Excel Driver (*.xls)};DriverId=790;Dbq=C:\MyExcel.xls;DefaultDir=c:\mypath;