2063 search results - page 138 / 413 » Containment of Aggregate Queries |
122
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VLDB
1998
ACM
15 years 8 months ago
1998
ACM
Oracle Materialized Views (MVs) are designed for data warehousing and replication. For data warehousing, MVs based on inner/outer equijoins with optional aggregation, can be refre...
151
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TKDE
1998
15 years 4 months ago
1998
—This paper describes a unified data model that represents multimedia, timeline, and simulation data utilizing a single set of related data modeling constructs. A uniform model f...
156
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EDBT
2009
ACM
15 years 8 months ago
2009
ACM
In a database system, disclosure of confidential private data may occur if users can put together the answers of past queries. Traditional access control mechanisms cannot guard a...
121
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BTW
2007
Springer
15 years 10 months ago
2007
Springer
Abstract: XML documents are widely used as a generic container for textual contents. As they are increasingly growing in size, XML databases have come up to efficiently store and q...
154
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PET
2010
Springer
15 years 8 months ago
2010
Springer
We explore how Private Information Retrieval (PIR) can help users keep their sensitive information from being leaked in an SQL query. We show how to retrieve data from a relational...