716 search results - page 94 / 144 » Optimizing Queries in Extended Relational Databases |
CHI
2011
ACM
14 years 2 months ago
2011
ACM
A key feature of relational database applications is managing plural relationships—one-to-many and many-to-many— between entities. However, since it is often infeasible to ado...
113
click to vote
GIS
2009
ACM
15 years 3 months ago
2009
ACM
Data warehouses and On-Line Analytical Processing (OLAP) provide an analysis framework supporting the decision making process. In many application domains, complex analysis tasks ...
168
click to vote
VLDB
2007
ACM
15 years 11 months ago
2007
ACM
A "plan diagram" is a pictorial enumeration of the execution plan choices of a database query optimizer over the relational selectivity space. We have shown recently tha...
171
click to vote
PODS
2009
ACM
15 years 11 months ago
2009
ACM
Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
ICDE
2010
IEEE
15 years 6 months ago
2010
IEEE
— Massive data analysis on large clusters presents new opportunities and challenges for query optimization. Data partitioning is crucial to performance in this environment. Howev...