1268 search results - page 57 / 254 » On database query languages for K-relations |
VLDB
1991
ACM
13 years 11 months ago
1991
ACM
We explore the implications of supporting bags (i.e. multisets) in a data model and associated query language, and present some formal results concerned with the algebraic propert...
ICDE
2012
IEEE
11 years 10 months ago
2012
IEEE
—We demonstrate SWITCH, a deep embedding of relational queries into RUBY and RUBY on RAILS. With SWITCH, there is no syntactic or stylistic difference between RUBY programs that ...
JMLR
2012
11 years 10 months ago
2012
Given a point set S and an unknown metric d on S, we study the problem of efficiently partitioning S into k clusters while querying few distances between the points. In our model...
ICDM
2007
IEEE
14 years 2 months ago
2007
IEEE
Data security is a critical issue for many organizations. Sensitive data must be protected from both inside and outside attackers. Access control policies and related mechanisms h...
AVI
2008
13 years 8 months ago
2008
Traditional database query formulation is intensional: at the level of schemas, table and column names. Previous work has shown that filters can be created using a query paradigm ...