4616 search results - page 299 / 924 » Beyond relational databases |
134
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SIGMOD
1997
ACM
15 years 11 months ago
1997
ACM
In this paper, we study a simple SQL extension that enables query writers to explicitly limit the cardinality of a query result. We examine its impact on the query optimization an...
152
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VLDB
1987
ACM
15 years 10 months ago
1987
ACM
The design of the POSTGRES data model is described. The data model is a relational model that has been extended with abstract data types including user-defined operators and proce...
160
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ECCV
2002
Springer
16 years 8 months ago
2002
Springer
This paper examines issues arising in applying a previously developed edit-distance shock graph matching technique to indexing into large shape databases. This approach compares th...
173
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ICDM
2007
IEEE
16 years 1 months ago
2007
IEEE
Data security is a critical issue for many organizations. Sensitive data must be protected from both inside and outside attackers. Access control policies and related mechanisms h...
187
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SIGMOD
1996
ACM
15 years 11 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...