Sciweavers

26 search results - page 2 / 6
» Redundancy Awareness in SQL Queries
Sort
View
SIGMOD
2006
ACM
124views Database» more  SIGMOD 2006»
14 years 4 months ago
Redundancy and information leakage in fine-grained access control
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...
Govind Kabra, Ravishankar Ramamurthy, S. Sudarshan
ICDCS
2011
IEEE
12 years 3 months ago
YSmart: Yet Another SQL-to-MapReduce Translator
— MapReduce has become an effective approach to big data analytics in large cluster systems, where SQL-like queries play important roles to interface between users and systems. H...
Rubao Lee, Tian Luo, Yin Huai, Fusheng Wang, Yongq...
PDIS
1996
IEEE
13 years 8 months ago
Querying the World Wide Web
The World Wide Web is a large, heterogeneous, distributedcollectionof documents connected by hypertext links. The most common technologycurrently used for searching the Web depend...
Alberto O. Mendelzon, George A. Mihaila, Tova Milo
SIGMOD
2003
ACM
175views Database» more  SIGMOD 2003»
14 years 4 months ago
WinMagic : Subquery Elimination Using Window Aggregation
Database queries often take the form of correlated SQL queries. Correlation refers to the use of values from the outer query block to compute the inner subquery. This is a conveni...
Calisto Zuzarte, Hamid Pirahesh, Wenbin Ma, Qi Che...
PVLDB
2010
85views more  PVLDB 2010»
13 years 2 months ago
Xplus: A SQL-Tuning-Aware Query Optimizer
The need to improve a suboptimal execution plan picked by the query optimizer for a repeatedly run SQL query arises routinely. Complex expressions, skewed or correlated data, and ...
Herodotos Herodotou, Shivnath Babu