251 search results - page 37 / 51 » Optimizing recursive queries in SQL |
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Accurate cardinality estimation is critically important to high-quality query optimization. It is well known that conventional cardinality estimation based on histograms or simila...
IPSN
2009
Springer
14 years 2 months ago
2009
Springer
As the diversity of sensornet use cases increases, the combinations of environments and applications that will coexist will make custom engineering increasingly impractical. We in...
ICDE
1999
IEEE
14 years 8 months ago
1999
IEEE
Indexes play a vital role in decision support systems by reducing the cost of answering complex queries. A popular methodology for choosing indexes that is adopted by database adm...
BDA
2007
13 years 9 months ago
2007
Pervasive information systems give an overview of what digital environments should look like in the future. From a data-centric point of view, traditional databases have to be use...
ICDE
2010
IEEE
13 years 7 months ago
2010
IEEE
Abstract— Modern database management systems (DBMS) answer a multitude of complex queries on increasingly larger datasets. Given the complexities of the queries and the numerous ...