2396 search results - page 192 / 480 » The LIFEdb database in 2006 |
267
click to vote
SIGMOD
2006
ACM
16 years 6 months ago
2006
ACM
The current SQL standard for access control is coarse grained, in that it grants access to all rows of a table or none. Fine-grained access control, which allows control of access...
278
click to vote
SIGMOD
2006
ACM
16 years 6 months ago
2006
ACM
This paper introduces the Tuple Graph (TuG) synopses, a new class of data summaries that enable accurate selectivity estimates for complex relational queries. The proposed summari...
165
click to vote
PODS
2006
ACM
16 years 6 months ago
2006
ACM
d Abstract] Mikolaj Boja?nczyk Faculty of Mathematics, Informatics and Mechanics Warsaw University Poland Claire David LIAFA Universit?e Paris 7 France Anca Muscholl LIAFA Universi...
151
click to vote
PODS
2006
ACM
16 years 6 months ago
2006
ACM
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...
181
click to vote
PODS
2006
ACM
16 years 6 months ago
2006
ACM
A recently introduced information-theoretic approach to analyzing redundancies in database design was used to justify normal forms like BCNF that completely eliminate redundancies...