Data Science | Python | SQL
Database Normal Forms Every Developer Should Know
Normalization aims to eliminate redundancy and enforce data integrity by organizing data into logical, dependency-driven forms.
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Career Path of a Business Analyst in Business and ICT
Exploring the Career Path of a Business Analyst in Business and ICT In today’s rapidly evolving business landscape, the role of a Business Analyst (BA) has become indispensable. As organizations increasingly rely on data to drive their decisions, the need for professionals who can bridge the gap between business objectives and technological solutions is more…
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What is digital age?
What is digital age? The digital age, also known as the information age. It is a historical period, beginning with the advent of computers in the 1960s and continuing to the present days. The period is characterized by rapid increases in the electronic processing and sharing of information. The digital age is enabled by four…
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Customer Retention Survival Analysis
Customer Retention Survival Analysis. In survival analysis, the hazard ratio (HR) is the risk coefficient described the rate when event occurs in some conditions to the same events occurred under the control variable of interest. For example, in a clinical study of a treatment, the treated population may die at twice the rate of the…
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National park MIKUMI
Nestled in the heart of Tanzania, Mikumi National Park is a hidden gem that offers an unforgettable safari experience. Established in 1964, this park spans an impressive 3,230 square kilometers, making it the fourth largest national park in the country. A Unique Ecosystem Mikumi National Park is part of a unique ecosystem that includes the…
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Data Science | Python | SQL
Advanced Programming in Data Analysis
Advanced Programming in Data Analysis in data-driven world has got a new meanning. Advanced programming skills are essential for effective data analysis. This blog post explores the key concepts and techniques covered in the first part of the course “Zaawansowane programowanie w analizie danych,” led by Dr. Mieczysław Pawłowski from UMCS. We will delve into…
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Python for analyst – string split
The task is to convert html field to url. Row date we can get via this query We got data like this We can use string_split to convert html field to url. After that we got following result Happy coding.
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Population of Poland
Poland’s population by age At the beginning of 2025, the median age of Poland’s population was 42.5, with half of Poland’s population above this age, and the other half of the population below it. For added context, here’s how Poland’s total population broke down by age group at the start of the year: Note: percentages may not sum to 100 percent due…
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What drives people purchase online
What drives people purchase online. In recent years, online shopping has become driven by several key factors that influence consumer behavior. Surveys and studies have highlighted convenience, variety, competitive pricing, personalized experiences, and social influence as the primary drivers behind this trend. Convenience and Accessibility One of the most significant factors driving online purchases is…
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Fundusze hedgingowe
Fundusze hedgingowe to tytani świata inwestycji, znani ze swoich wyrafinowanych i elastycznych strategii mających na celu osiąganie wyjątkowych zwrotów. Ale czym dokładnie są fundusze hedgingowe i jak działają? Wprowadzenie do Funduszy Hedgingowych Fundusze hedgingowe to aktywnie zarządzane fundusze inwestycyjne, które koncentrują się na alternatywnych inwestycjach i często stosują ryzykowne strategie inwestycyjne1. Są one przeznaczone głównie…
