91 search results - page 1 / 19 » Aggregate Operators in Constraint Query Languages |
JCSS
2002
13 years 4 months ago
2002
PODS
1999
ACM
13 years 9 months ago
1999
ACM
We investigate the problem of how to extend constraint query languages with aggregate operators. We deal with standard relational aggregation, and also with aggregates speci c to ...
TCS
1998
13 years 4 months ago
1998
We introduce a new constraint domain, aggregation constraints, that is useful in database query languages, and in constraint logic programming languages that incorporate aggregate...
JCIT
2010
12 years 12 months ago
2010
Much information over the Internet is expressed by natural languages. The management of linguistic information involves an operation of comparison and aggregation. In this paper, ...
ICEBE
2005
IEEE
13 years 10 months ago
2005
IEEE
Over a traditional Database Management System (DBMS), the answer to an aggregate query is usually much smaller than the answer to a similar nonaggregate query. Therefore, we call ...