6650 search results - page 360 / 1330 » Mutating database queries |
184
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EDBT
2002
ACM
16 years 5 months ago
2002
ACM
Abstract. Estimating the sizes of query results, and intermediate results, is crucial to many aspects of query processing. In particular, it is necessary for effective query optimi...
164
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DPD
1998
15 years 4 months ago
1998
To meet users’ growing needs for accessing pre-existing heterogeneous databases, a multidatabase system (MDBS) integrating multiple databases has attracted many researchers recen...
246
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ICDE
2005
IEEE
16 years 6 months ago
2005
IEEE
Recently, progress indicators have been proposed for long-running SQL queries in RDBMSs. Although the proposed techniques work well for a subset of SQL queries, they are prelimina...
231
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ICDE
2003
IEEE
16 years 6 months ago
2003
IEEE
In order to publish a nested XML document from flat relational data, multiple SQL queries are often needed. The efficiency of publishing relies on how fast these queries can be ev...
135
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SIGMOD
2004
ACM
16 years 5 months ago
2004
ACM
We present BLAS , a Bi-LAbeling based System, for efficiently processing complex XPath queries over XML data. BLAS uses Plabeling to process queries involving consecutive child ax...