4469 search results - page 867 / 894 » A Language for Role Specifications |
170
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VLDB
2006
ACM
16 years 1 days ago
2006
ACM
The objective of extensible DBMSs is to ease the construction of specialized DBMSs for nontraditional applications. Although much work has been done in providing various levels of ...
177
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VLDB
2007
ACM
16 years 1 days ago
2007
ACM
The growing nature of databases, and the flexibility inherent in the SQL query language that allows arbitrarily complex formulations, can result in queries that take inordinate am...
177
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SIGMOD
2008
ACM
15 years 12 months ago
2008
ACM
Database archiving is important for the retrieval of old versions of a database and for temporal queries over the history of data. We demonstrate XArch, a management system for ma...
177
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SIGMOD
2007
ACM
15 years 12 months ago
2007
ACM
Declarative data quality has been an active research topic. The fundamental principle behind a declarative approach to data quality is the use of declarative statements to realize...
PODS
2008
ACM
15 years 12 months ago
2008
ACM
In the study of data exchange one usually assumes an openworld semantics, making it possible to extend instances of target schemas. An alternative closed-world semantics only move...