Teo Lachev @tlachev
I'm a consultant, mentor, and author, with a focus on the design and implementation of Data Analytics solutions. prologika.com Atlanta Joined September 2008-
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Atlanta Microsoft BI Group Meeting on July 6th (Using Generative AI on Structured Data) - prologika.com/atlanta-micros… Atlanta BI fans, please join us online for our next meeting on Monday, July 6th at 18:30 ET. James Serra (Data & AI Solution Architect at Microsoft) will show yo...
Power BI Date Picker - prologika.com/powerbi-date-p… The June release of Power BI Desktop includes a preview of a new Power BI slicer configuration - Date Picker. It’s meant to solve two issues with report design. The first one is letting the user select a single date by config...
Open Semantic Interchange (OSI) - prologika.com/osi/ An exited enterprise client came back from a conference where Snowflake delighted them with AI demos and semantic views built on Open Semantic Interchange (OSI) standard. Snowflake even went further to show how their ...
Atlanta Microsoft BI Group Meeting on June 1st (Build Your First Agent in Copilot Studio) - prologika.com/atlanta-micros… Atlanta BI fans, please join us in person for our next meeting on Monday, June 1st at 18:30 ET. Elayne Jones (Senior Solution Engineer at Microsoft) will show ...
Replicating BigQuery to Fabric Reloaded - prologika.com/replicating-bi… In a previous post, I referred to an engagement where we used the Fabric Copy Job activity to replicate Google BigQuery tables to Fabric, so we can use Direct Lake semantic models. A few months later, the clie...
Replicating BigQuery to Fabric Reloaded - prologika.com/replicating-bi… In a previous post, I referred to an engagement where we used the Fabric Copy Job activity to replicate Google BigQuery tables to Fabric, so we can use Direct Lake semantic models. A few months later, the clie...
Power BI Unmaterialized Columns - prologika.com/powerbi-unmate… Coming back from a long vacation, I’ve almost missed this interesting Power BI enhancement: Power BI unmaterialized calculated columns. Normally, I avoid the traditional DAX calculated columns for a variety of reasons...
Direct Lake Composite Models - prologika.com/direct-lake-co… I’ve mentioned previously in the “A Couple of Direct Lake Gotchas” post that unlike Power BI reports, Excel surprised me by not showing user-defined hierarchies in a Direct Lake model. Direct Lake comes with other gotcha...
Atlanta Microsoft BI Group Meeting on March 2nd (Your First Steps in Microsoft Fabric Using Just SQL) - prologika.com/atlanta-micros… Atlanta BI fans, please join us in person for our next meeting on Monday, March 2nd at 18:30 ET. Shabnam Watson will show you how you can apply you...
A Couple of Direct Lake Gotchas - prologika.com/a-couple-of-di… I’m helping an enterprise client modernize their data analytics estate. As a part of this exercise, a SSAS Multidimensional financial cube must be converted to a Power BI semantic model. The challenge is that business...
Atlanta Microsoft BI Group Meeting on February 2nd (Power BI Translytical Taskflows) - prologika.com/atlanta-micros… Atlanta BI fans, please join us in person for our next meeting on Monday, February 2nd at 18:30 ET. Sukhwant Kaur (Product Manager at Microsoft) will show you how s...
Atlanta Microsoft BI Group Meeting on January 5th (Visual Calculations in Power BI) - prologika.com/atlanta-micros… Atlanta BI fans, please join us in person for our next meeting on Monday, January 5th at 18:30 ET. Dean Jurecic will show you how Power BI visual calculations can si...
First Look at Fabric IQ: The Good, The Bad, and The Ugly - prologika.com/first-look-at-… Telegraph sang a song about the world outside Telegraph road got so deep and so wide Like a rolling river… The Telegraph Road, Dire Straits At Ignite in November, 2025, Microsoft intro...
Performance and Cost Considerations from Power BI Pro/PPU to Fabric - prologika.com/performance-an… What performance and cost considerations should you keep in mind if you are currently on Power BI Pro/PPU, but Fabric looks increasingly enticing? Performance Performance is d...
Prologika Newsletter Winter 2025 - prologika.com/prologika-news… If Microsoft Fabric is in your future, you need to come up with a strategy to get your data in Fabric OneLake. That’s because the holy grail of Fabric is the Delta Parquet file format. The good news is that all F...
Power BI Workspace Identity Authentication - prologika.com/power-bi-works… What credentials do you use to refresh your Power BI semantic models from Azure SQL SKUs, such as Azure SQL Database. Probably your credentials or a designated Entra account? Both are not ideal for a variet...
Atlanta Microsoft BI Group Meeting on December 1st (Migrating Semantic Models to Fabric Direct Lake) - prologika.com/atlanta-micros… Atlanta BI fans, please join us in person for our next meeting on Monday, December 1st at 18:30 ET. I'll show you how to Fabric DirectLake semantic ...
SaaS Losers and Winners: Paylocity and Element - prologika.com/saas-losers-an… “We are sailing to Philadelphia A world away from the coaly Tyne Sailing to Philadelphia To draw the line The Mason-Dixon line” “Sailing to Philadelphia”, Mark Knopfler As I’ve said in the past ...
Atlanta Microsoft BI Group Meeting on November 3rd (Semantic Link Labs: A Link to the Future) - prologika.com/atlanta-micros… Atlanta BI fans, please join us in person for our next meeting on Monday, November 3rd at 18:30 ET. Jason Romans (Microsoft MVP) will show you how to use S...
Replicating BigQuery to Fabric - prologika.com/replicating-bi… A recent engagement required replicating some DW tables from Google BigQuery to a Fabric Lakehouse. We considered the Fabric mirroring feature (back then in private preview, now publicly available) and learned some les...
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