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Type Inheritance and Relational Theory: Subtypes, Supertypes, and
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Type Inheritance and Relational Theory: Subtypes, Supertypes, and Substitutability Paperback - 2016

by Chris J. Date

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Reader reviews for Type Inheritance and Relational Theory: Subtypes, Supertypes, and Substitutability

From the publisher

Type inheritance is that phenomenon according to which we can say, for example, that every square is also a rectangle, and so properties that apply to rectangles in general apply to squares in particular. In other words, squares are a subtype of rectangles, and rectangles are a supertype of squares. Recognizing and acting upon such subtype / supertype relationships provides numerous benefits: Certainly it can help in data modeling, and it can also provide for code reuse in applications. For these reasons, many languages, including the standard database language SQL, have long supported such relationships. However, there doesn't seem to be any consensus in the community at large on a formal, rigorous, and abstract model of inheritance. This book proposes such a model, one that enjoys several advantages over other approaches, not the least of which it is that it's fully compatible with the well known relational model of data.

Topics the model covers include:

  • Both single and multiple inheritance
  • Scalar, tuple, and relation inheritance
  • Type lattices and union and intersection types
  • Polymorphism and substitutability
  • Compile time and run time binding

All of these topics are described in detail in the book, with numerous illustrative examples, exercises, and answers. The book also discusses several alternative approaches. In particular, it includes a detailed discussion and analysis of inheritance as supported in the SQL standard.

Details

  • Title Type Inheritance and Relational Theory: Subtypes, Supertypes, and Substitutability
  • Author Chris J. Date
  • Binding Paperback
  • Edition Paperback
  • Pages 569
  • Volumes 1
  • Language ENG
  • Publisher O'Reilly Media
  • Publication date 2016-10-18
  • ISBN 9781491959992 / 1491959991
  • Weight 1.98 lbs (0.90 kg)
  • Dimensions 9.19 x 7 x 1.16 in (23.34 x 17.78 x 2.95 cm)
  • Category Computers - Data Base Management

About the author

C.J. Date has a stature that is unique within the database industry. C.J. is a prolific writer, and is well-known for his best-selling textbook: An Introduction to Database Systems (Addison Wesley). C.J. is an exceptionally clear-thinking writer who can lay out principles and theory in a way easily understood by his audience.

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Type Inheritance and Relational Theory

Type Inheritance and Relational Theory

by C. J. Date

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Paperback / softback. New. In this practical book, C.J. Date provides a model for type inheritance that is not programming-language-specific. This model provides programmers who specialize in one language the broader background to understand and implement types in other languages. Exercises are included with most chapters.
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Type Inheritance and Relational Theory

Type Inheritance and Relational Theory

by C. J. Date

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Description:
Paperback / softback. New. In this practical book, C.J. Date provides a model for type inheritance that is not programming-language-specific. This model provides programmers who specialize in one language the broader background to understand and implement types in other languages. Exercises are included with most chapters.
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Type Inheritance and Relational Theory: Subtypes, Supertypes, and Substitutability [Paperback]...
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Type Inheritance and Relational Theory: Subtypes, Supertypes, and Substitutability
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Type Inheritance and Relational Theory: Subtypes, Supertypes, and Substitutability
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Type Inheritance and Relational Theory: Subtypes, Supertypes, and Substitutability

by Date, C. J

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Type Inheritance and Relational Theory: Subtypes, Supertypes, and Substitutability
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by Date, C. J.

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