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Chapter 19. Linking Jet Applications to ... > Evaluating the Benefits of Migrating...

Evaluating the Benefits of Migrating to Client/Server Databases

Modern client/server databases, typified by Microsoft SQL Server 2000, provide a much more reliable and scalable data storage environment than shared-file databases, such as Jet. The vast majority of production databases used by all but very small organizations follow the client/server model. Oracle currently claims the lion's share of the client/server relational database management system (RDBMS) business, but IBM, Microsoft, and Sybase each own significant market share.

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Many traditional—sometimes called legacy—database management systems that run on mainframes, such as IBM's IMS, are neither client/server nor relational. The trend, however, is to replace or augment these databases with mainframe RDBMSs, such as IBM DB2, that support—but don't necessarily use—the client/server operating mode.



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