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ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
Database views are extensively used to represent unmaterialized tables. Applications rarely distinguish between a materialized base table and a virtual view, thus, they may issue ...
SIGMOD
2006
ACM
14 years 8 months ago
2006
ACM
We present and analyze an algorithm for equivalent rewriting of XQuery queries using XQuery views, which is complete for a large class of XQueries featuring nested FLWR blocks, XM...
DMDW
2001
13 years 9 months ago
2001
Accurately estimating the cardinality of aggregate views is crucial for logical and physical design of data warehouses. While the warehouse is under development and data are not a...
SIGMOD
1997
ACM
14 years 5 days ago
1997
ACM
Data warehouses store materialized views over base data from external sources. Clients typically perform complex read-only queries on the views. The views are refreshed periodical...
FLOPS
2010
Springer
14 years 2 months ago
2010
Springer
We present a general framework for generating SQL query test cases using Constraint Logic Programming. Given a database schema and a SQL view defined in terms of other views and s...