18 search results - page 3 / 4 » Fighting Redundancy in SQL |
CDB
2004
Springer
13 years 11 months ago
2004
Springer
Preference queries are relational algebra or SQL queries that contain occurrences of the winnow operator (find the most preferred tuples in a given relation). We present here a nu...
ICDE
2010
IEEE
14 years 5 months ago
2010
IEEE
Abstract-- Despite the best intentions of disk and RAID manufacturers, on-disk data can still become corrupted. In this paper, we examine the effects of corruption on database mana...
KDD
2005
ACM
14 years 6 months ago
2005
ACM
We present an algorithm for mining tree-shaped patterns in a large graph. Novel about our class of patterns is that they can contain constants, and can contain existential nodes w...
CCS
2007
ACM
14 years 6 days ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
DEXA
2009
Springer
14 years 18 days ago
2009
Springer
Abstract. This paper proposes a natural extension of conditional functional dependencies (cfds [14]) and conditional inclusion dependencies (cinds [8]), denoted by cfdp s and cindp...