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    8i865gme 775 download driver manager

    Name: 8i865gme 775 download driver manager
    Category: Free
    Published: rowhetcara1980
    Language: English

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

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    [This is where the speculation starts] As far as I can see, every time you run a Power Query query two files are created: one with a filename beginning “excel”, the other with a filename beginning “Microsoft.Mashup.Container”. All of the interesting things I found were in the “Microsoft.Mashup.Container” files so I’ll ignore the second type of file from now on. You can then run some queries and you’ll see trace log files appear in that folder: The obvious way to get rid of everything before the JSON is to split the column twice using a colon as the delimiter. However if you do this using the default UI settings you’ll find that the JSON is mysteriously broken – all the double quotes have disappeared. This is in fact a side-effect of the way the UI uses the Splitter.SplitTextByEachDelimiter() function: it uses a null in the second parameter, which translates to the default value of QuoteStyle.Csv, but to stop the JSON breaking you need to change this to QuoteStyle.None. When you have got rid of everything but the JSON, you just need to click Parse/JSON and you can explore the data in there: Here’s an example of a query I generated to read a log file. I don’t want you to think this is a query that will read every log file though: the format may vary depending on the query you run or the version of Power Query you have. I also encountered a few bugs and strange error messages in Power Query while experimenting (I think some were caused by trying to read from files while tracing was turned on, or while the files were open in Notepad) so I can’t guarantee you’ll be able to read the files you’re interested in. Microsoft Power BI, Analysis Services, MDX, DAX, M, Power Pivot and Power Query. In the September 2014 update of Power Query a new piece of functionality was added: the ability to turn on tracing. There’s no documentation about what the trace files actually contain anywhere (it’s clearly intended to be used only by Microsoft to help them diagnose problems) but I couldn’t help but be curious about what’s in there. And of course, when faced with a strange text file to make sense of, I turned to Power Query! First of all, to turn on tracing, click on the Options button on the Power Query tab in the Excel ribbon, then check the ‘Enable Power Query tracing’ box: The format of these files is pretty clear from this screenshot: At this point you’re on your own, I’m afraid. Happy exploring! Reading The Power Query Trace File–With Power Query. Clicking on the ‘Open traces folder’ link will take you to the directory where the trace files are stored, which in my case is: Chris Webb's BI Blog. At this point there’s plenty of useful information available: a list of events, a start time for each event, a duration for each event, and other columns where error messages, durations, SQL queries and the number of fields returned by each SQL query. All very useful information when you’re trying to work out why your Power Query query is slow or why it’s not working properly. It’s a shame there isn’t any documentation on what’s in the trace file but as I said, it’s not really for our benefit so I can understand why. Each line in the file starts with “DataMashup.Trace.Information”, then there’s a number (which seems to be the same in all cases) and then there’s a JSON fragment. There are two things to point out before you attack this file in Power Query thought:

     

     

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