21. Database Connectivity

Installing the DBMS and creating databases are vitally important parts of the DBA’s job. However, if the DBMS is not connected to the network, no one will ever be able to access the data.

Multitier, Distributed Computing

This section offers a short introduction to multitier, distributed computing, including client/server. The DBA must possess an understanding of the terms commonly used in a multitier processing setting to assure database access in a distributed business environment.

A Historical Look

In the early days of computing, computers required large amounts of power and resources to run. Batch processing was the only operating mode, and users received printed reports as their only source of information. Mainframe ...

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