1860 search results - page 119 / 372 » A Model of Queries for Object-Oriented Databases |
160
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SIGMOD
2011
ACM
14 years 7 months ago
2011
ACM
We address the problem of making online, parallel query plans fault-tolerant: i.e., provide intra-query fault-tolerance without blocking. We develop an approach that not only achi...
156
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ICDT
1999
ACM
15 years 9 months ago
1999
ACM
Abstract. In this paper we consider databases representing information about moving objects (e.g. vehicles), particularly their location. We address the problems of updating and qu...
125
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VLDB
1992
ACM
15 years 9 months ago
1992
ACM
In this paper, we explore the execution of pipelined hash joins in a multiprocessor-based database system. To improve the query execution, an innovative approach on query executio...
141
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SIGMOD
2004
ACM
16 years 5 months ago
2004
ACM
Current day database applications, with large numbers of users, require fine-grained access control mechanisms, at the level of individual tuples, not just entire relations/views,...
141
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KBSE
2008
IEEE
15 years 11 months ago
2008
IEEE
We present a novel approach for black-box testing of database management systems (DBMS) using the Alloy tool-set. Given a database schema and an SQL query as inputs, our approach ...