Schema, Questions & Solutions for SQL Exercising

Includes schema diagrams and build scripts that mimic practical data structures, as shown in the repository structure with files like *_schema_figure.png and *_build_schema.sql.

Each exercise has SQL solutions from both Wikibook and the author, providing immediate feedback and learning opportunities, as mentioned in the introduction.

Problems range from foundational to advanced, with exercises 1-8 from educational resources and 9-10 from practical scenarios, offering balanced learning coverage.

Every exercise folder contains all necessary files—schema figures, build scripts, and question/solution SQL files—making setup straightforward without external dependencies.