32 search results - page 1 / 7 » Improved Query Plans for Unnesting Nested SQL Queries |
IEEECSA
2009
13 years 2 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. ...
ICDE
1995
IEEE
14 years 5 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 ...
ICDE
2007
IEEE
14 years 5 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 ...
VLDB
1992
ACM
13 years 8 months ago
1992
ACM
BTW
2003
Springer
13 years 9 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...