A note from the authors: Dear Reader: 'Database is boring.' That sentiment is heard all too wi...

This book is a revised, upgraded, and hugely improved version of an earlier one called Logic and ...

A set in mathematics is just a collection of elements; an example is the set of natural numbers {...

Keys and foreign keys play a crucial role in relational databases-keys identify the objects of in...

No matter what DBMS you are using—Oracle, DB2, SQL Server, MySQL, PostgreSQL—misunderstandings ca...

SQL is full of difficulties and traps for the unwary. You can avoid them if you understand relati...

Type inheritance is that phenomenon according to which we can say, for example, that every square...

'Fifty years of relational. It's hard to believe the relational model has been around now for ove...

This book sheds light on the principles behind the relational model, which is fundamental to all ...

Views are virtual tables. That means they should be updatable, just as 'real' or base tables are....

All of today’s mainstream database products support the SQL language, and relational theory is wh...

E. F. Codd's relational model of data has been described as one of the three greatest inventions ...