A graduate in Edinburgh has drawn thousands of users to a website he built while searching for work, after turning SQL practice into a set of detective cases instead of conventional tutorials.

A collection of SQL projects focused on sales analysis using a pizza dataset. Includes queries and corresponding output files for data insights ...

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 ...