1846 search results - page 47 / 370 » Fuzzy queries and relational databases |
WIDM
1999
ACM
14 years 2 months ago
1999
ACM
In order to provide database-like features for files, particularly for searching in Web data, one solution is to migrate file data into a relational database. Having stored the da...
CAISE
2006
Springer
14 years 1 months ago
2006
Springer
Databases are continuously evolving environments, where design constructs are added, removed or updated quite often. Research has extensively dealt with the problem of database evo...
ICDT
2007
ACM
14 years 4 months ago
2007
ACM
Abstract. We study containment of conjunctive queries that are evaluated over databases that may contain tuples with null values. We assume the semantics of SQL for single block qu...
AMW
2010
13 years 11 months ago
2010
Abstract. Inference control can guarantee confidentiality but is costly to implement. Access control can be implemented efficiently but cannot guarantee confidentiality. Hence, it ...
SIGMOD
2005
ACM
14 years 3 months ago
2005
ACM
One of the most powerful features of SQL is the use of nested queries. Most research work on the optimization of nested queries focuses on aggregate subqueries. However, the solut...