1933 search results - page 26 / 387 » Query Containment Using Views |
CAISE
2004
Springer
15 years 2 months ago
2004
Springer
Abstract. ID-Logic is a knowledge representation language that extends first-order logic with non-monotone inductive definitions. This paper introduces an ID-Logic based framewor...
APWEB
2004
Springer
15 years 2 months ago
2004
Springer
Queries to data warehouses often involve hundreds of complex aggregations over large volumes of data, and so it is infeasible to compute these queries by scanning the data sources ...
DBISP2P
2006
Springer
15 years 1 months ago
2006
Springer
Abstract. The both-as-view (BAV) approach to data integration has the advantage of specifying mappings between schemas in a bidirectional manner, so that once a BAV mapping has bee...
153
click to vote
ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
We study the problem of answering XPATH queries using multiple materialized views. Despite the efforts on answering queries using single materialized view, answering queries using ...
DBPL
2009
Springer
15 years 4 months ago
2009
Springer
In this paper, we revisit the view based security framework for XML without imposing any of the previously considered restrictions on the class of queries, the class of DTDs, and t...