2859 search results - page 306 / 572 » Querying Complex Structured Databases |
173
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SIGMOD
1993
ACM
15 years 10 months ago
1993
ACM
The traditional focus of relational query optimization schemes has been on the choice of join methods and join orders. Restrictions have typically been handled in query optimizers ...
297
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NAR
2011
14 years 9 months ago
2011
The Cervical Cancer gene DataBase (CCDB, http:// crdd.osdd.net/raghava/ccdb) is a manually curated catalog of experimentally validated genes that are thought, or are known to be i...
276
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
Schema evolution poses serious challenges in historical data management. Traditionally historical data have been archived either by (i) migrating them into the current schema vers...
220
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SIGMOD
2004
ACM
16 years 6 months ago
2004
ACM
Virtually every commercial query optimizer chooses the best plan for a query using a cost model that relies heavily on accurate cardinality estimation. Cardinality estimation erro...
155
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ICDE
2009
IEEE
16 years 1 months ago
2009
IEEE
— A spreadsheet-like “direct manipulation” interface is more intuitive for many non-technical database users compared to traditional alternatives, such as visual query builde...