1177 search results - page 44 / 236 » A Database of Narrative Schemas |
DOOD
1995
Springer
14 years 10 days ago
1995
Springer
Abstract. A simple model for method-based authorization is defined and an algorithm is presented for testing in compile-time whether a given database schema violates authorization...
ICDE
1996
IEEE
14 years 10 months ago
1996
IEEE
This paper describes a method to cope with denormalized relational schemas in a database reverse engineering process. We propose two main steps to irnprove the understanding of da...
PODS
2008
ACM
14 years 9 months ago
2008
ACM
A schema mapping is a high-level specification that describes the relationship between two database schemas. As schema mappings constitute the essential building blocks of data ex...
JUCS
2010
13 years 3 months ago
2010
: Although a database view embodies partial information about the state of the main schema, the state of the view schema is a quotient (and not a subset) of the state of the main s...
CIKM
2004
Springer
14 years 2 months ago
2004
Springer
We study the representation, derivation and utilization of a special kind of constraints in multidatabase systems. A major challenge is when component database schemas are schemat...