34 search results - page 1 / 7 » Optimization of Nested SQL Queries by Tableau Equivalence |
DBPL
1999
Springer
13 years 9 months ago
1999
Springer
ICDE
2007
IEEE
14 years 6 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 ...
BTW
2003
Springer
13 years 10 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...
ICDE
2006
IEEE
13 years 11 months ago
2006
IEEE
Due to the flexible structures of SQL, no general approach works efficiently for all kinds of queries. Some special kinds of queries can be further optimized for better performa...
VLDB
2005
ACM
13 years 10 months ago
2005
ACM
Nested iteration is an important technique for query evaluation. It is the default way of executing nested subqueries in SQL. Although decorrelation often results in cheaper non-n...