Tom Johnston: 4 books

Bitemporal data has always been important. But it was not until 2011 that the ISO released a SQL standard that supported it. Currently, among major DBMS vendors, Oracle, IBM and Teradata now provide at least some bitemporal functionality in their flagship products. But to use these products effectively,...

Managing Time in Relational Databases: How to Design, Update and Query Temporal Data introduces basic concepts that will enable businesses to develop their own framework for managing temporal data. It discusses the management of uni-temporal and bi-temporal data in relational databases, so that they...

This young readers edition of Ingenious focuses on 50 kid-friendly Canadian innovations that changed the world, from canoes to whoopie cushions, chocolate bars to Pablum. Co-written by Canada's Governor General and accompanied by contemporary illustrations, this adaptation offers young Canadians a...

This book provides a holistic overview of the English and Welsh system of criminal justice, from the earliest stages of investigation and arrest through to the punishment and release of offenders. Aimed at students, it examines not only the law and procedure of criminal justice and punishment, but...