111 search results - page 5 / 23 » Deductive Database Languages: Problems and Solutions |
ICDE
1999
IEEE
14 years 8 months ago
1999
IEEE
Temporal reasoning and temporal query languages present di cult research problems of theoretical interest and practical importance. One problem is the chasm between point-based te...
ICDT
2010
ACM
13 years 11 months ago
2010
ACM
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...
SLE
2009
Springer
14 years 2 months ago
2009
Springer
One of the most ubiquitous elements of modern computing is the relational database. Very few modern applications are created without some sort of database backend. Unfortunately, r...
FOCS
1998
IEEE
13 years 11 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
ICALP
2007
Springer
14 years 1 months ago
2007
Springer
We consider several private database query problems. The starting point of this work is the element rank problem: the server holds a database of n integers, and the user an integer...