259 search results - page 19 / 52 » Using Relational Database Constraints to Design Materialized... |
ICDE
2005
IEEE
14 years 8 months ago
2005
IEEE
The SQL queries produced in XML-to-SQL query translation are often unnecessarily complex, even for simple input XML queries. In this paper we argue that relational systems can do ...
ICDE
2004
IEEE
14 years 8 months ago
2004
IEEE
Most of today's structured data is stored in relational databases. Such a database consists of multiple relations which are linked together conceptually via entity-relationsh...
PVLDB
2010
13 years 2 months ago
2010
Database evolution is the process of updating the schema of a database or data warehouse (schema evolution) and evolving the data to the updated schema (data evolution). Database ...
SAC
2008
ACM
13 years 7 months ago
2008
ACM
We address aggregate queries over GIS data and moving object data, where non-spatial information is stored in a data warehouse. We propose a formal data model and query language t...
ICDT
2003
ACM
14 years 21 days ago
2003
ACM
We state and solve the query reformulation problem for XML publishing in a general setting that allows mixed (XML and relational) storage for the proprietary data and exploits redu...