2574 search results - page 50 / 515 » Typed Query Languages for Databases Containing Queries |
PVLDB
2008
13 years 8 months ago
2008
This paper studies, for the first time, the management of type information for an important class of semi-structured data: nested DAGs (Directed Acyclic Graphs) that describe exec...
VLDB
1995
ACM
14 years 7 days ago
1995
ACM
We present a shape definition language, called SDC, for retrieving objects based on shapes contained in the histories associated with these objects. It is a small, yet powerful, l...
DEXA
2000
Springer
14 years 1 months ago
2000
Springer
The relational model, as proposed by Codd, contained the concept of relations as tables composed of tuples of single valued attributes taken from a domain. In most of the early lit...
GIS
2005
ACM
14 years 9 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
DEXA
1997
Springer
14 years 27 days ago
1997
Springer
Abstract. In this paper, we consider a multidatabase system which consists of media databases and traditional alphanumeric databases. The semantic relationships which may exist amo...