9 search results - page 1 / 2 » Semantically Correct Query Answers in the Presence of Null V... |
EDBTW
2006
Springer
13 years 8 months ago
2006
Springer
For several reasons a database may not satisfy a given set of integrity constraints (ICs), but most likely most of the information in it is still consistent with those ICs; and cou...
ICDT
2001
ACM
13 years 9 months ago
2001
ACM
In fast OLAP applications it is often advantageous to provide approximate answers to range queries in order to achieve very high performances. A possible solution is to inquire sum...
JUCS
2010
12 years 11 months ago
2010
: We develop and study the concept of dataflow process networks as used for example by Kahn to suit exact computation over data types related to real numbers, such as continuous fu...
PVLDB
2010
13 years 3 months ago
2010
Entity linkage is central to almost every data integration and data cleaning scenario. Traditional techniques use some computed similarity among data structure to perform merges a...
VLDB
1987
ACM
13 years 8 months ago
1987
ACM
is at least ae powerful as SQL. Two well known relational query languages that have a sound theoretical foundation are relational algebra and relational calculus. As SQL is more cl...