439 search results - page 34 / 88 » Unnesting Arbitrary Queries |
ICDE
2007
IEEE
14 years 11 months ago
2007
IEEE
Applications such as traffic management and resource scheduling for location-based services commonly need to identify regions with high concentrations of moving objects. Such quer...
DBA
2004
13 years 11 months ago
2004
This paper discusses how to extend the applicability of the recursive cascade update command of the Xplain query language. This command guarantees termination because cycle detect...
RTCSA
2008
IEEE
14 years 4 months ago
2008
IEEE
This paper addresses the problem of using the Location IDentifier (LID) as the domain value of the index for trajectories of RFID tags and proposes the solution for solving this p...
VLDB
2004
ACM
14 years 3 months ago
2004
ACM
Query processing in database systems has developed beyond mere exact matching of attribute values. Scoring database objects and retrieving only the top k matches or Pareto-optimal...
SIGMOD
1999
ACM
14 years 2 months ago
1999
ACM
In large data warehousing environments, it is often advantageous to provide fast, approximate answers to complex aggregate queries based on statistical summaries of the full data....