What are user segmentation techniques? How to locate your Power users? How to do user segmentation analysis in SQL?
How to apply CASE in SQL to specify a result when there are multiple conditions.
Olga Berezovsky
Welcome to Issue 18 of my Data Analysis Journal newsletter, where I write about data analysis, data science, and business intelligence. 
Olga Berezovsky
An insightful look into the world of data analysis and what makes a great team in this interview with a product expert.
Olga Berezovsky
This is an intense and stressful week. While we are all busy watching election results, data analysis work never stops - in fact, it’s more important t…
Olga Berezovsky
Hello dear readers, and please join me in celebrating 4 months since I launched the Data Analysis Journal! Time flies!
Olga Berezovsky
It’s Wednesday, and I’m back with another edition of the Data Analysis Journal for you to explore news, insights, and resources in the data analysis wo…
Olga Berezovsky
A guide to follow to pick the right visualization for data storytelling
Olga Berezovsky
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