1327 search results - page 151 / 266 » Drawing database schemas |
WWW
2001
ACM
14 years 9 months ago
2001
ACM
Integrity constraints are an essential part of a modern schema definition language. They are useful for semantic specification, update consistency control, query optimization, inf...
BIRTHDAY
2009
Springer
14 years 3 months ago
2009
Springer
Data integration has been an important area of research for several years. However, such systems suffer from one of the main drawbacks of database systems: the need to invest signi...
ER
2005
Springer
14 years 2 months ago
2005
Springer
Query rewriting is a fundamental task in query optimization and data integration. With the advent of the web, there has been renewed interest in data integration, where data is dis...
FQAS
2004
Springer
14 years 2 months ago
2004
Springer
One of the key issues in product catalogs is how to efficiently integrate and query large, intricate, heterogeneous catalogs. We propose a framework for building a dynamic catalog...
NDT
2010
13 years 7 months ago
2010
This paper focuses on an aspect that is widely neglected in native XML database management systems: support for concurrent transactional access. We analyze the isolation requireme...