32 search results - page 1 / 7 » Improved Query Plans for Unnesting Nested SQL Queries |
130
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IEEECSA
2009
14 years 10 months ago
2009
- The SQL language allows users to express queries that have nested subqueries in them. Optimization of nested queries has received considerable attention over the last few years. ...
201
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ICDE
1995
IEEE
16 years 1 months ago
1995
IEEE
?In a fuzzy relational database where a relation is a fuzzy set of tuples and ill-known data are represented by possibility distributions, nested fuzzy queries can be expressed in ...
214
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ICDE
2007
IEEE
16 years 1 months ago
2007
IEEE
Optimizing nested queries is an intricate problem. It becomes even harder if in a nested query the linking predicate or the correlation predicate occurs disjunctively. We present ...
129
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VLDB
1992
ACM
15 years 4 months ago
1992
ACM
129
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BTW
2003
Springer
15 years 5 months ago
2003
Springer
Abstract: Optimization of nested queries, in particular finding equivalent “flattened” queries for queries that employ the SQL sub-query construct, has been researched extensiv...