Advanced SQL for Data Analytics. A collection of problem-solving solutions covering complex Joins, Window Functions, CTEs, and Query Optimization. Includes real-world interview questions, schema ...

Learning SQL is a great move for anyone working with data, but actually getting good at it can feel tricky, especially if you don’t have a database handy. Luckily, there are tons of free places online ...

Getting good at SQL for interviews can feel like a puzzle. You know the basics, but putting them together in a way that impresses people is another thing entirely. Luckily, there are great tools out ...

Sven, a sales leader, received a call from a major customer who was furious. Their order arrived late, the product was damaged, and to top it off, their invoice didn’t reflect the volume discount ...

Creative problem-solving can be an exhilarating experience. You get a triple benefit: the euphoric 'aha' moment of solving a puzzle, the pride of accomplishing a goal, and the deeper self-discovery of ...

Current AI models struggle to solve research-level math problems, with the most advanced AI systems we have today solving just 2% of the hundreds of challenges faced. When you purchase through links ...

SQL, the Structured Query Language, is a cornerstone skill for anyone working with data. To master this powerful language, consistent practice is crucial. We present a curated list of 12 top-notch ...

SQL Everyday is a personal challenge to solve at least one SQL problem everyday for the next 365 days, starting from September 28, 2024. The problems are selected from websites devoted to online ...

Security researchers have found a vulnerability in a key air transport security system that allowed unauthorized individuals to potentially bypass airport security screenings and gain access to ...