COMAD
2009
13 years 6 months ago
2009
XML stream querying problem involves evaluating a given, potentially large, set of query expressions on a continuous stream of XML messages. Since the messages arrive continuously...
DBPL
1993
Springer
13 years 9 months ago
1993
Springer
A frequent dilemma in the design of a database programming language is the choice between a language with a rich set of tailored notations for schema definitions, query expression...
UML
2001
Springer
13 years 9 months ago
2001
Springer
UML is the de-facto standard language for Object-Oriented analysis and design of information systems. Persistent storage and extraction of data in such systems is supported by dat...
SIGMOD
2004
ACM
14 years 5 months ago
2004
ACM
Cardinality estimation during query optimization relies on simplifying assumptions that usually do not hold in practice. To diminish the impact of inaccurate estimates during opti...
ICDE
2003
IEEE
14 years 6 months ago
2003
IEEE
Query optimizers use base-table statistics to derive statistics on the sub-plans that are enumerated during optimization. In practice, traditional optimizers rely on a number of s...