Teo Lachev

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Teo Lachev

Teo Lachev

@tlachev

I'm a consultant, mentor, and author, with a focus on the design and implementation of Data Analytics solutions.

Atlanta Katılım Eylül 2008
40 Takip Edilen1.3K Takipçiler
Teo Lachev
Teo Lachev@tlachev·
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...
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Teo Lachev@tlachev·
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...
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Teo Lachev@tlachev·
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...
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Teo Lachev@tlachev·
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...
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Teo Lachev@tlachev·
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...
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Teo Lachev@tlachev·
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...
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Teo Lachev@tlachev·
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...
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Teo Lachev@tlachev·
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...
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Teo Lachev@tlachev·
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...
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Teo Lachev@tlachev·
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 ...
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Teo Lachev@tlachev·
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 ...
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Teo Lachev@tlachev·
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...
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Teo Lachev@tlachev·
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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Teo Lachev@tlachev·
Atlanta Microsoft BI Group Meeting on October 9th (Everything You Want to Know About SQL Databases in Fabric) - prologika.com/atlanta-micros… Atlanta BI fans, please join us in person for our next meeting on Thursday, October 9th (note that we are meeting on Thursday for this meet...
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Teo Lachev@tlachev·
Prologika Newsletter Fall 2025 - prologika.com/prologika-news… Like the Ancient Greek philosopher Diogenes, who walked the streets of Athens with a lamp to find one honest man, I have been searching for a convincing Fabric feature for my clients. As Microsoft Fabric evolves, more...
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Teo Lachev@tlachev·
Atlanta Microsoft BI Group Meeting on September 8th (End-to-End Azure DevOps for Data Engineering in Microsoft Fabric) - prologika.com/atlanta-micros… Atlanta BI fans, please join us in person for our next meeting on Monday, September 8th at 18:30 ET. Jeff Levy (Data Architect @ P...
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Teo Lachev@tlachev·
Migrating Fabric Import Semantic Models to Direct Lake (Part 2) - prologika.com/migrating-fabr… I’ve previously shared my experience with migrating a Fabric imported semantic model to Direct Lake. This blog follows up with additional observations about performance. The following s...
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Teo Lachev@tlachev·
From Prompt to Insight: My Daily Dance with AI - prologika.com/ai-daily-dance/ “I go checking out the reports, digging up the dirt You get to meet all sorts in this line of work And when I find the reason, I still can't get used to it And what have you got at the end of the day...
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Teo Lachev@tlachev·
Atlanta Microsoft BI Group Meeting on August 4th (Power BI Built-in Gems: Time-Saving Features You Should Be Using) - prologika.com/atlanta-micros… Atlanta BI fans, please join us in person for our next meeting on Monday, August 4th at 18:30 ET, which marks the 15th anniversary of...
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Teo Lachev@tlachev·
Migrating Fabric Import Semantic Models to Direct Lake - prologika.com/migrating-fabr… I’ve recently written about strategies for addressing memory pressures with Fabric large semantic models and I mentioned that one of them was switching to Direct Lake. This blog captures my expe...
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