PROLOGIKA BLOG · IDEAS FROM THE FIELD
Practical perspectives on Microsoft Fabric, Power BI, semantic models, and the work of turning data into insight.
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My wife bought a pack of replacement water filters from Amazon. It was tagged as "Amazon's choice". The product listing showed the manufacturer name and it had a nice product photo advertising genuine filters. Except that there were all fake, which we discovered quickly by the output water pressure. The water coming out of a filter should have lower pressure while there was no difference…
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MS BI fans, join us for the next Atlanta MS BI and Power BI Group meeting on November 4, Monday, at 6:30 PM at the Microsoft office in Alpharetta. Andy Lawrence will share best practices for impactful Power BI Dashboards. CCG Analytics will sponsor the meeting. For more details, visit our group page and don't forget to RSVP (fill in the RSVP survey if you're planning to attend). Presentation: Best Practices…
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Every now and then I get a question about how to secure Power BI report pages. A business analyst has created a multi-page report that requires limited access to some sensitive information in one or more report pages. I always cringe at this idea and recommend securing the data instead. That's because report-level or dashboard-level security can be easily compromised. For example, if the user…
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Power BI lets you filter the visual data by a measure, such as by a measure that dynamically calculates the customer's rank. This is convenient but there are performance implications related to the way Power BI autogenerates the DAX query. If a visual has a visual-level filter on a measure, Power BI Desktop defines a variable table filter that includes all measures in the visual.…
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A discussion overheard between two attendees at SQLSaturday yesterday: What is this Tabular thing? Like a cube but better. How's it better? It's in memory. I wonder if it can improve the performance of my report… It should, it's also in the Cloud. Note to myself. Use "in memory" and "cloud" more often.
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SQL Saturday Atlanta (BI Edition) will be held on October 19th. I'll present a "Power BI Pro, or Premium: that is the question" strategy-oriented session at 12:30. One question that always pops us during my Power BI assessments for companies planning to adopt Power BI is which SKU to buy. The choice might seem obvious to your organization, but there is much more below the…
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MS BI fans, join us for the next Atlanta MS BI and Power BI Group meeting on October 7, Monday, at 6:30 PM at the Microsoft office in Alpharetta. Qubole will show us how Presto, Azure Data Lake, and Power BI can be used to analyze Big Data. Qubole will sponsor the meeting. For more details, visit our group page and don't forget to RSVP (fill in the RSVP survey if…
Read article MS BI fans, join us for the next Atlanta MS BI and Power BI Group meeting on September 10, Tuesday, at 6:30 PM at the Microsoft office in Alpharetta. This is a meeting not to miss. A DAX founder, Jeffrey Wang (Principal Software Engineer Manager at the Power BI product group) is coming all the way from Seattle to share DAX best practices with our group! Captech Consulting…
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A recent requirement called for an asymmetric crosstab report in Power BI. Transitioned to Adventure Works, the final report looks like this. The Internet column shows the sales amount from FactInternetSales. Then, the matrix pivots on the BusinessType column in the FactResellerSales. Because, Internet sales don't relate to BusinessType, it doesn't make sense to pivot it. Instead, we want to show Internet sales in a…
Read articleScenario: A client reports a memory spike during processing. They have a Tabular semantic model deployed to Azure Analysis Services. They fully process the model daily. The model normally takes less than 50 GB RAM but during processing, it spikes five times and Azure Analysis Services terminates the processing task complaining that it "reached the maximum allowable memory in our pricing tier". Normally, fully processing…
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