1500 search results - page 77 / 300 » Query Optimization in Database Grid |
ICDE
2007
IEEE
14 years 10 months ago
2007
IEEE
Probabilistic databases have received considerable attention recently due to the need for storing uncertain data produced by many real world applications. The widespread use of pr...
SIGMOD
2007
ACM
14 years 9 months ago
2007
ACM
Complex queries often contain common or similar subexpressions, either within a single query or among multiple queries submitted as a batch. If so, query execution time can be imp...
VLDB
2007
ACM
14 years 9 months ago
2007
ACM
Incompleteness due to missing attribute values (aka "null values") is very common in autonomous web databases, on which user accesses are usually supported through media...
EDBT
2008
ACM
14 years 9 months ago
2008
ACM
Enterprises may have multiple database systems spread across the organization for redundancy or for serving different applications. In such systems, query workloads can be distrib...
DEXA
2005
Springer
14 years 2 months ago
2005
Springer
Bitmap indices are efficient data structures for processing complex, multi-dimensional queries in data warehouse applications and scientific data analysis. For high-cardinality at...