The Fictioning Horror Sale
 
 

Recently Viewed clear list


Original Essays | September 4, 2014

Edward E. Baptist: IMG The Two Bodies of The Half Has Never Been Told: Slavery and the Making of American Capitalism



My new book, The Half Has Never Been Told: Slavery and the Making of American Capitalism, is the story of two bodies. The first body was the new... Continue »
  1. $24.50 Sale Hardcover add to wish list

spacer
Qualifying orders ship free.
$40.95
New Trade Paper
Ships in 1 to 3 days
Add to Wishlist
available for shipping or prepaid pickup only
Available for In-store Pickup
in 7 to 12 days
Qty Store Section
1 Remote Warehouse Database- Design

More copies of this ISBN

Other titles in the Springer Briefs in Computer Science series:

Repairing and Querying Databases Under Aggregate Constraints (Springer Briefs in Computer Science)

by

Repairing and Querying Databases Under Aggregate Constraints (Springer Briefs in Computer Science) Cover

 

Synopses & Reviews

Publisher Comments:

Research has deeply investigated several issues related to the use of integrity constraints on relational databases. In particular, a great deal of attention has been devoted to the problem of extracting "reliable" information from databases containing pieces of information inconsistent with regard to some integrity constraints. In this manuscript, the problem of extracting consistent information from relational databases violating integrity constraints on numerical data is addressed. Aggregate constraints defined as linear inequalities on aggregate-sum queries on input data are considered. The notion of repair as consistent set of updates at attribute-value level is exploited, and the characterization of several data-complexity issues related to repairing data and computing consistent query answers is provided. Moreover, a method for computing "reasonable" repairs of inconsistent numerical databases is introduced, for a restricted but expressive class of aggregate constraints. An extension of this method for dealing with the data repairing problem in the presence of weak aggregate constraints which are expected to be satisfied, but not required to, is presented. Furthermore, a technique for computing consistent answers of aggregate queries in the presence of a wide form of aggregate constraints is provided. Finally, extensions of the framework as well as several open problems are discussed.

Synopsis:

none

Table of Contents

Introduction.- Preliminaries.- Repairing and Querying: the Fundamental Decision Problems.- Computing Card-minimal Repairs.- Consistent Answers to Aggregate Queries.- Possible Extensions and Open Problems.- References.

Product Details

ISBN:
9781461416401
Author:
Flesca, Sergio
Publisher:
Springer
Author:
Furfaro, Filippo
Author:
Parisi, Francesco
Subject:
Database Management - General
Subject:
Inconsistent databases
Subject:
aggregate constraints
Subject:
consistent query answer
Subject:
numerical data integrity
Subject:
Repairs
Subject:
Database management
Subject:
Database design
Copyright:
Edition Description:
2011
Series:
SpringerBriefs in Computer Science
Publication Date:
20111101
Binding:
TRADE PAPER
Language:
English
Pages:
69
Dimensions:
235 x 155 mm

Related Subjects

Business » General
Computers and Internet » Database » Design
Computers and Internet » Internet » Information
Computers and Internet » Software Engineering » Software Management

Repairing and Querying Databases Under Aggregate Constraints (Springer Briefs in Computer Science) New Trade Paper
0 stars - 0 reviews
$40.95 In Stock
Product details 69 pages Springer - English 9781461416401 Reviews:
"Synopsis" by , none
spacer
spacer
  • back to top
Follow us on...




Powell's City of Books is an independent bookstore in Portland, Oregon, that fills a whole city block with more than a million new, used, and out of print books. Shop those shelves — plus literally millions more books, DVDs, and gifts — here at Powells.com.