995 search results - page 108 / 199 » Optimization of Complex Nested Queries in Relational Databas... |
165
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ER
2005
Springer
15 years 10 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...
225
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SIGMOD
2008
ACM
16 years 5 months ago
2008
ACM
XML database systems are expected to handle increasingly complex queries over increasingly large and highly structured XML databases. An important problem that needs to be solved ...
155
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SIGMOD
1997
ACM
15 years 9 months ago
1997
ACM
Data warehouses store materialized views over base data from external sources. Clients typically perform complex read-only queries on the views. The views are refreshed periodical...
153
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SIGMOD
1996
ACM
15 years 9 months ago
1996
ACM
METU INteroperable Database System (MIND) is a multidatabase system that aims at achieving interoperability among heterogeneous, federated DBMSs. MIND architecture is based on OMG...
160
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DEXAW
1999
IEEE
15 years 9 months ago
1999
IEEE
ing spatio-temporal data as abstract data types into already existing data models is a promising approach to creating spatio-temporal query languages. In this context, an importan...