22 search results - page 4 / 5 » On the complexity of nonrecursive XQuery and functional quer... |
ICDE
2010
IEEE
14 years 5 months ago
2010
IEEE
Searching and extracting meaningful information out of highly heterogeneous datasets is a hot topic that received a lot of attention. However, the existing solutions are based on e...
ITICSE
2004
ACM
13 years 10 months ago
2004
ACM
SQL (Structured Query Language) is one of the essential topics in foundation databases courses in higher education. Due to its apparent simple syntax, learning to use the full pow...
SIGMOD
2008
ACM
14 years 5 months ago
2008
ACM
To deal with data uncertainty, existing probabilistic database systems augment tuples with attribute-level or tuple-level probability values, which are loaded into the database al...
TIME
2005
IEEE
13 years 11 months ago
2005
IEEE
This paper presents an XML-based approach to implementing the parametric model of temporal databases. In the parametric model, attribute values are functions of time and the entir...
VLDB
2007
ACM
14 years 5 months ago
2007
ACM
The growing nature of databases, and the flexibility inherent in the SQL query language that allows arbitrarily complex formulations, can result in queries that take inordinate am...