Standard Relational and Network Database Languages

This book is in three parts. The first part describes the database management system as it should be and discusses the various facilities it should offer the database administra- tor, the programmer and the general user. The second part describes SQL, including the schema and sub-schema defini- tion languages, the module language, the module language and themanipulation language while a third part is devoted to NDL including the commands to create the schema and the views, the module and the data manipulation language.