• Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Domains and Types in Relational Theory and SQL

Domains and Types in Relational Theory and SQL

Paperback

DatabasesGeneral Computers

Publisher Price: $49.95

ISBN10: 1634625447
ISBN13: 9781634625449
Publisher: Technics Publications
Published: Sep 2 2024
Pages: 290
Weight: 1.11
Height: 0.61 Width: 7.50 Depth: 9.25
Language: English

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-domains per Codd, types per Codd, domains per SQL, types per SQL-are the same thing! Other researchers, designers, and implementers then got into the act with further definitions of their own, and the picture became, and remains, more confused than ever. This book is an attempt to clear the air. To be specific, it argues that:

Also in

General Computers