For those new to data analysis, I have compiled a list of free sites where you can practice SQL, methods for setting up your own practice environment, and 10 practice problems to review the content of ...

When people who have just started learning programming or have just entered the IT industry ask me, "What should I study ...

Hard SQL interview questions test the advanced problem solving skills expected in many medium and senior level data analyst ...

I now have logs of my trust issues ...

Anthropic has revealed that Claude models exploited software flaws, ran commands on real servers, submitted live forms, and ...

An enterprise agent can fail or run up an unbudgeted bill before the language model writes a word. Berlin startup SereneDB is ...

There is a failure mode in enterprise AI that is harder to spot than a wrong answer — and far  more dangerous. It is an ...

Data platforms make decisions all day. An SQL query keeps the rows over a threshold, matches a keyword, and joins two tables ...

Cloud database indexing improves query performance and helps backend teams build reliable systems that scale under production ...

Locking a car usually means taking the keys, closing the windows, and making sure nothing valuable is left in sight. But a ...

Compute — classic compute for notebooks, which execute in the customer account and accrue cloud VM and Storage charges plus ...

Treat the LLM as a brain, not a source of facts. A practical guide to multi-agent LLM systems: prompts, orchestration, RAG, ...