213 search results - page 13 / 43 » Parallel Evaluation of Multi-Join Queries |
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
Parallel database systems have to support the effective parallelization of complex queries in multi-user mode, i.e. in combination with inter-query/inter-transaction parallelism. ...
VLDB
2000
ACM
13 years 11 months ago
2000
ACM
Data allocation is a key performance factor for parallel database systems (PDBS). This holds especially for data warehousing environments where huge amounts of data and complex an...
MFCS
2009
Springer
14 years 2 months ago
2009
Springer
We study visibly pushdown automata (VPA) models for expressing and evaluating queries, expressed using MSO formulas, on words with a nesting structure (like XML documents). We de�...
GRID
2003
Springer
14 years 21 days ago
2003
Springer
We are developing a grid information service, RGIS, that is based on the relational data model. RGIS supports complex queries written in SQL that search for compositions (using jo...
CCGRID
2004
IEEE
13 years 11 months ago
2004
IEEE
This paper is concerned with efficient querying of very large multi-resolution datasets on storage and compute clusters. We present a suite of services that support storage, index...