Sciweavers

433 search results - page 42 / 87
» Querying and Maintaining Ordered XML Data using Relational D...
Sort
View
PVLDB
2008
167views more  PVLDB 2008»
13 years 8 months ago
Managing and querying transaction-time databases under schema evolution
The old problem of managing the history of database information is now made more urgent and complex by fast spreading web information systems, such as Wikipedia. Our PRIMA system ...
Hyun Jin Moon, Carlo Curino, Alin Deutsch, Chien-Y...
ICDT
1995
ACM
105views Database» more  ICDT 1995»
14 years 7 days ago
Datalog Queries of Set Constraint Databases
Abstract. Extension of the relational database model to represent complex data has been a focus of much research in recent years. At the same time, an alternative extension of the ...
Peter Z. Revesz
EDBT
2004
ACM
172views Database» more  EDBT 2004»
14 years 8 months ago
Content-Based Routing of Path Queries in Peer-to-Peer Systems
Peer-to-peer (P2P) systems are gaining increasing popularity as a scalable means to share data among a large number of autonomous nodes. In this paper, we consider the case in whic...
Georgia Koloniari, Evaggelia Pitoura
VLDB
2004
ACM
124views Database» more  VLDB 2004»
14 years 2 months ago
Automated Statistics Collection in DB2 UDB
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...
Ashraf Aboulnaga, Peter J. Haas, Sam Lightstone, G...
VLDB
1999
ACM
112views Database» more  VLDB 1999»
14 years 29 days ago
Context-Based Prefetch for Implementing Objects on Relations
When implementing persistent objects on a relational database, a major performance issue is prefetching data to minimize the number of roundtrips to the database. This is especial...
Philip A. Bernstein, Shankar Pal, David Shutt