710 search results - page 3 / 142 » Efficiency of Nested Relational Document Database Systems |
VLDB
1990
ACM
13 years 9 months ago
1990
ACM
Relations in partitioned normal form are an important subclass of nested relations. This paper is concerned with the problem of restructuring relations in partitioned normal form ...
SIGMOD
2002
ACM
14 years 5 months ago
2002
ACM
XML is quickly becoming the de facto standard for data exchange over the Internet. This is creating a new set of data management requirements involving XML, such as the need to st...
ICDE
1995
IEEE
14 years 6 months ago
1995
IEEE
?In a fuzzy relational database where a relation is a fuzzy set of tuples and ill-known data are represented by possibility distributions, nested fuzzy queries can be expressed in ...
SIGMOD
2003
ACM
14 years 5 months ago
2003
ACM
We consider the problem of efficiently producing ranked results for keyword search queries over hyperlinked XML documents. Evaluating keyword search queries over hierarchical XML ...
SIGMOD
2005
ACM
13 years 11 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...