Oracle DBA on UNIX and Linux by Michael Wessler

By Michael Wessler

The booklet is excellent however it is kind of previous that i dowsn't include theetire new know-how among linux and oracle database.

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As a DBA, most of what you do will be executed via SQL*Plus. In fact, it is preferable for the DBA to be more knowledgeable about SQL*Plus than the GUI management tools. SQL*Plus provides everything you need without a cumbersome GUI. As long as the DBA can reach any PC and use Telnet to connect to the Unix/Linux server hosting the database, the DBA is fully functional because access to SQL*Plus will always be available. Just as SQL*Plus is a powerful tool and is widely available, it is a potential security risk.

For example, even if the DBA is not responsible for creating a swap file, he should know what it is and how its use affects performance. This book will not teach you how to be a full-time SA, but it will show you the aspects of systems administration that affect your database. Business Knowledge Most production database systems are not isolated, nor are they merely for research. Database systems are typically built to support a larger system that supports a business process. It is this process that the DBA needs to understand.

1 Oracle Server Overview Net8 Oracle Database Instance Architecture of the Oracle Server CHAPTER 2 31 This represents the most rudimentary example of a user accessing a database. In fact, this is about as simple as it gets. We will discuss more advanced architectures in later chapters. In this example we introduced several fundamental components: a user, a user’s application, a network, and a database residing on a Unix/Linux server. We will now look at some of the key components in more detail.

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