Joe Celko believes the problem lies with their procedural programming mindset, which makes them take full advantage of the power of declarative languages. Focusing on three key table-based techniques, Celko reveals their power through detailed examples and clear explanations. Before long, you will be coding more quickly, writing more efficient code, and apply the full power of SQL . Focus on additional tables (for computing functions and other values by joins), temporal tables (for temporal queries, historical data, and audit information), and virtual tables (for improved performance). .