Tag

Analytics

5 articles

16 min read/6 views

Data Analyst in 2026: The Role AI Changed But Couldn't Kill

AI automated 30-40% of the old analyst job. The remaining 60% pays better than ever. Here is what the role actually looks like now.

14 min read/5 views

A 20-week roadmap to become a data analyst: SQL, Python, BI tools, AI integration, portfolio strategy, and what interviews actually test.

15 min read/2 views

One writes SQL at 2 AM. The other rewrites the requirements doc at 2 AM. Both make $90K+. Here is how to pick.

13 min read/1 views

A 47-second Postgres query took 120ms on ClickHouse. Columnar storage, vectorized execution, and why your analytics belong in OLAP.

18 min read/1 views

Polars is 8.7x faster than pandas. DuckDB is 9.4x faster. Both handle larger-than-RAM data. Here's when to use each — with benchmarks.