1031 search results - page 21 / 207 » Managing the operator ordering problem in parallel databases |
DEXA
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. In relational database management systems indexes are used to accelerate specific queries. The selection of indexes is an important task when tuning a database which is ...
PRDC
1999
IEEE
13 years 12 months ago
1999
IEEE
Generally, applications employing Database Management Systems (DBMS) require that the integrity of the data stored in the database be preserved during normal operation as well as ...
FOCS
1998
IEEE
13 years 12 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
SIGMOD
2010
ACM
14 years 15 days ago
2010
ACM
Continuous analytics systems that enable query processing over steams of data have emerged as key solutions for dealing with massive data volumes and demands for low latency. Thes...
DPD
2010
13 years 5 months ago
2010
In distributed database systems, tables are frequently fragmented and replicated over a number of sites in order to reduce network communication costs. How to fragment, when to rep...