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Updating Logical Databases (Cambridge Tracts in Theoretical Computer Science) [Hardcover]

Marianne Winslett (Author)


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Book Description

October 26, 1990 0521373719 978-0521373715
This book tackles the problems of update algorithms for databases. How can one construct and maintain a database of facts, capable of incorporating new information and getting rid of all outdated information, and yet in the process not disturb any other information in the database? The author has produced a formal method of specifying the desired change intentionally using a "formula-based" approach to updating needs rather than a "model-based" technique. The complexity of the algorithms, choice of semantics and means of enforcing integrity constraints are also discussed.

Editorial Reviews

Review

"The book is written in a readable and inspiring style. The motivations for new concepts are well explained." Urs-Martin KÜnzi, Journal of Symbolic Logic

Book Description

This book tackles the problems of update algorithms for databases. How can one construct and maintain a database of facts, capable of incorporating new information and getting rid of all outdated information, and yet in the process not disturb any other information in the database?

Product Details

  • Hardcover: 221 pages
  • Publisher: Cambridge University Press (October 26, 1990)
  • Language: English
  • ISBN-10: 0521373719
  • ISBN-13: 978-0521373715
  • Product Dimensions: 9.7 x 6.8 x 0.6 inches
  • Shipping Weight: 1.1 pounds
  • Amazon Best Sellers Rank: #10,627,885 in Books (See Top 100 in Books)

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Inside This Book (learn more)
First Sentence:
Suppose that one wishes to construct, use, and maintain a body of information describing what is known about the state of the world. Read the first page
Key Phrases - Statistically Improbable Phrases (SIPs): (learn more)
lazy graph, tuple splitting, same constant interpretations, logical relationship space, same truth valuation, completion axioms, null substitution, cost estimation function, reverse topological sort, satisfiability tester, update equivalence, data atom, history atoms, cardinality counting, truth valuations, history predicates, equality atoms, restrictive semantics, backward pruning, ordinary relational databases, ground updates, update identifiers, most general substitution, wff form, reason maintenance system
Key Phrases - Capitalized Phrases (CAPs): (learn more)
Splitting Rule, Lazy Algorithm, Splitting Algorithm, Possible Models Approach, Let Toposort, Under Hegner
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