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Unformatted text preview: and minicomputer
DBMSs (e.g., library systems) • Typical of 1st generation of single-user
microcomputer database (e.g., Access
Source: Database Systems by Rob and Coronel
BUSI 335 Copyright © 2009-10 Y.M. Cheung, William Tan and Carson Woo 9 BUSI 335 Multiple-Site Processing,
Single-Site Data (MPSD)
Data (MPSD) • Fully distributed DBMS with support for server (i.e., the server appears as another
hard disk) multiple data processors and transaction
processors at multiple sites
• Homogeneous DDBMS: • Typically, applications access the databases
through a local area network (LAN) – integrates only one type of DBMS over the network
(e.g., Oracle or DB2) • Inefficient if large databases are involved • Heterogeneous DDBMS – e.g., SELECT *
WHERE TotalSales > 1000000 Copyright © 2009-10 Y.M. Cheung, William Tan and Carson Woo 10 Multiple-Site Processing,
Multiple-Site Data (MPMD)
Data (MPMD) • Database files are stored on a ne...
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This document was uploaded on 03/04/2014 for the course COMM 335 at UBC.
- Spring '12