Sciweavers

Share
warning: Creating default object from empty value in /var/www/modules/taxonomy/taxonomy.module on line 1416.
EDBT
2009
ACM
135views Database» more  EDBT 2009»
11 years 9 months ago
Provenance for nested subqueries
Data provenance is essential in applications such as scientiļ¬c computing, curated databases, and data warehouses. Several systems have been developed that provide provenance fun...
Boris Glavic, Gustavo Alonso
DAWAK
2003
Springer
11 years 10 months ago
Computing SQL Queries with Boolean Aggregates
We introduce a new method for optimization of SQL queries with nested subqueries. The method is based on the idea of Boolean aggregates, aggregates that compute the conjunction or ...
Antonio Badia
VLDB
2005
ACM
122views Database» more  VLDB 2005»
11 years 10 months ago
Optimizing Nested Queries with Parameter Sort Orders
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...
Ravindra Guravannavar, H. S. Ramanujam, S. Sudarsh...
books