Language features for interoperability of databases with schematic discrepancies
SIGMOD '91 Proceedings of the 1991 ACM SIGMOD international conference on Management of data
Optimization of parallel query execution plans in XPRS
Distributed and Parallel Databases - Selected papers from the first international conference on parallel and distributed information systems
Reducing multidatabase query response time by tree balancing
SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
An overview of DB2 parallel edition
SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
A query processing algorithm for a system of heterogeneous distributed databases
Distributed and Parallel Databases
Systems Analysis for Data Transmission
Systems Analysis for Data Transmission
Access path selection in a relational database management system
SIGMOD '79 Proceedings of the 1979 ACM SIGMOD international conference on Management of data
An Intelligent Search Method for Query Optimization by Semijoins
IEEE Transactions on Knowledge and Data Engineering
A Graph Theoretical Approach to Determine a Join Reducer Sequence in Distributed Query Processing
IEEE Transactions on Knowledge and Data Engineering
Applying Segmented Right-Deep Trees to Pipelining Multiple Hash Joins
IEEE Transactions on Knowledge and Data Engineering
Optimization of Parallel Execution for Multi-Join Queries
IEEE Transactions on Knowledge and Data Engineering
A Parallel Sort Merge Join Algorithm for Managing Data Skew
IEEE Transactions on Parallel and Distributed Systems
A Query Sampling Method of Estimating Local Cost Parameters in a Multidatabase System
Proceedings of the Tenth International Conference on Data Engineering
Query Optimization in a Heterogeneous DBMS
VLDB '92 Proceedings of the 18th International Conference on Very Large Data Bases
Coloring Away Communication in Parallel Query Optimization
VLDB '95 Proceedings of the 21th International Conference on Very Large Data Bases
On the query translation in federative relational databases
DEXA '96 Proceedings of the 7th International Workshop on Database and Expert Systems Applications
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In this paper, we consider the query evaluation problem in multidatabases and develop an algorithm for generating optimal plans for queries submitted to an integrated schema. we try to extend the basic transformation step used in the method proposed by Du et al [7] and construct a dynamic time table to support a query optimization process. In this way, not only the join tree balance, but also the node allocation can be achieved according to both conmuinication costs and load measurements. In addition, the queuing analysis has been utilized to estimate the response times of local database systems.