LIBROS DEL AUTOR: chris date

7 resultados para LIBROS DEL AUTOR: chris date

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  • Domains and Types in Relational Theory and SQL
    Chris Date
    What’s a domain? What’s a type? The original version of the relational model (defined by Codd in 1969) had domains and not types. The original version of the SQL standard (defined by committee in 1986, but based on work done by Boyce and Chamberlin et al. in the 1970s) had types and not domains. Later, Codd added types and SQL added domains. But no two of these constructs-domai...
    Disponible

    47,07 €

  • Database Technology
    Chris Date
    Essentially all truly general purpose database systems today are based on the relational model of data. That model was invented by E. F. ('Ted') Codd in the late 1960s and early 1970s, during his employment at the IBM Research Laboratory in San Jose, California, and it was solidly based on conventional two-valued logic, 2VL. Unfortunately, those same general purpose database sy...
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    46,58 €

  • The Relational Model for Database Management Version 2 - A Critical Analysis
    Chris Date
    The relational model of data was invented by one man, E. F. ('Ted') Codd, during his employment in the late 1960s and early 1970s at the IBM Research Laboratory in San Jose, California. Today, virtually all general purpose database systems are based on that model. But those systems are still a long way from perfect-and a major reason for this sorry state of affairs is that they...
    Disponible

    67,03 €

  • E. F. Codd and Relational Theory, Revised Edition
    Chris Date
    E. F. Codd’s relational model of data has been described as one of the three greatest inventions of all time (the other two being agriculture and the scientific method), and his receipt of the 1981 ACM Turing Award, the top award in computer science, for inventing it was thoroughly deserved. The papers in which Codd first described his model were staggering in their originality...
    Disponible

    39,54 €

  • Fifty Years of Relational, and Other Database Writings
    Chris Date
    Fifty years of relational. It’s hard to believe the relational model has been around now for over half a century! But it has-it was born on August 19th, 1969, when Codd’s first database paper was published. And Chris Date has been involved with it for almost the whole of that time, working closely with Codd for many years and publishing the very first, and definitive, book on t...
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    39,51 €

  • Logic and Relational Theory
    Chris Date
    This book is a revised, upgraded, and hugely improved version of an earlier one called Logic and Databases.  Although it’s effectively a brand new book, therefore, the following remarks from that earlier book are still relevant here.  First, logic and databases are inextricably intertwined.  The relational model itself is essentially just elementary logic, tailored to database ...
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    40,73 €

  • Database Explorations
    Chris J. Date / Chris JDate / Hugh Darwen
    A note from the authors: Dear Reader: 'Database is boring.' That sentiment is heard all too widely these days. But it’s so wrong! The database field is full of important problems still to be solved and interesting issues still to be examined - and some of those problems and issues are explored in this book. Between us, we have nearly 80 years experience in this field, and we’re...
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    54,64 €