33 search results - page 4 / 7 » First-order complete and computationally complete query lang... |
ISPAN
1997
IEEE
13 years 11 months ago
1997
IEEE
This paper is concerned with the transparent parallelisation of declarative database queries, based on theoretical principles. We have designed an entire database architecture sui...
VLDB
2007
ACM
14 years 7 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...
DBPL
1999
Springer
13 years 11 months ago
1999
Springer
We consider two-dimensional spatial databases defined in terms of polynomial inequalities and focus on the potential of programming languages for such databases to express queries...
FOCS
2008
IEEE
14 years 1 months ago
2008
IEEE
Relational joins are at the core of relational algebra, which in turn is the core of the standard database query language SQL. As their evaluation is expensive and very often domi...
SEMCO
2009
IEEE
14 years 2 months ago
2009
IEEE
Semantic integration in the hidden Web is an emerging area of research where traditional assumptions do not always hold. Frequent changes, conflicts and the sheer size of the hid...