Articles by tag: data-analytics

ClickHouse: why columnar DBMS accelerate analytics by 100 times

We explain using real benchmarks and a betting scheme: ClickHouse vs PostgreSQL and MySQL. Architecture, query examples, use cases. Read 5 minutes.

Semantic layer: why is it needed in analytics

Learn how the semantic layer resolves data ambiguity for AI. Structure, pros, cons, and implementation. Get clear instructions for middle/senior developers.

Top YouTube channels on data analytics 2026

Selection of channels on data and product analytics in English: Alex The Analyst, Amplitude, Mixpanel. SQL practice, retention, funnels for middle/senior. Watch with subtitles and apply in projects — improve skills in a week.

Excel vs BI: when should companies switch

Learn Excel limits in analytics and signs of transition to BI systems. Comparison of approaches, cases and criteria for business. Optimize processes today.

Data Analytics Courses 2026: Top Programs

Compare data analytics courses 2026: Netology, Skypro, Skillbox. Salaries, SQL/Python/BI skills, AI integration. Choose a program with employment guarantee and start your career.