4137 search results - page 585 / 828 » Managing Expressions as Data in Relational Database Systems |
183
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SIGMOD
2010
ACM
15 years 11 months ago
2010
ACM
Current relational databases require that a database schema exist prior to data entry and require manual optimization for best performance. We describe the query optimization tech...
183
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CIDR
2007
15 years 8 months ago
2007
Fragmentation leads to unpredictable and degraded application performance. While these problems have been studied in detail for desktop filesystem workloads, this study examines n...
173
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SIGMOD
2011
ACM
14 years 9 months ago
2011
ACM
Correctness of data residing in a database is vital. While integrity constraint enforcement can often ensure data consistency, it is inadequate to protect against updates that inv...
173
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IJSWIS
2007
15 years 6 months ago
2007
In this paper, we present MELIS (Meaning Elicitation and Lexical Integration System), a method and a software tool for enabling an incremental process of automatic annotation of lo...
192
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ICDT
2001
ACM
15 years 11 months ago
2001
ACM
In information-integration systems, source relations often have limitations on access patterns to their data; i.e., when one must provide values for certain attributes of a relatio...