Oracle tools for dba

Common Oracle DBA Tasks
October 7, 2022 – 12:28 pm
Oracle Database Administration Tools | AquaFold

This guide is part of a comprehensive set of learning material for administering Oracle Database, which includes a 2 Day DBA Oracle By Example (OBE) series, available on the Web, and in an Oracle University instructor-led class.

Every chapter in Oracle Database 2 Day DBA has an associated Oracle By Example lesson. The OBE steps through all tasks in the chapter and includes annotated screenshots. In some cases, the OBE provides additional information to help you complete the task.

At the end of each chapter, you can find the link to its associated OBE lesson. The home page for the 2 Day DBA Oracle By Example series is as follows:

About Oracle Database

Oracle Database is a relational database with object and Extensible Markup Language (XML) capabilities. In a relational database, all data is stored in two-dimensional tables that are composed of rows and columns. Oracle Database enables you to store data, update it, and efficiently retrieve it, with a high degree of performance, reliability, and scalability.

Oracle Database is composed of the following elements:

  • The Oracle software that you install on your host computer
  • The database, which is a collection of physical files on one or more disks

    The database contains user data, metadata, and control structures. Metadata, or data about the data, is the collection of information on disk that permits Oracle software to manage user data. An example of metadata is the data dictionary. Control structures (such as the control file and online redo log files) ensure the integrity, availability, and recoverability of user data.

  • The Oracle instance, which is composed of the following:
  • The background processes, which are the operating system processes or threads that perform the work of accessing, storing, monitoring, and recovering user data, metadata, and control files associated with the database
  • The shared memory areas used by the background processes
  • Server processes that perform work on behalf of connected users and applications, and the memory and temporary storage used by these processes

    Server processes parse and execute SQL statements, and retrieve and return results to the user or application.

  • Oracle Net, which is a software layer that enables client applications and Oracle Database to communicate over a network, and the Oracle Net listener, which is a process that listens for connection requests from the network.
  • Common Oracle DBA Tasks

    As an Oracle DBA, you can expect to be involved in the following tasks:

  • Installing Oracle software
  • Creating Oracle databases
  • Performing upgrades of the database and software to new release levels
  • Starting and shutting down the database instance
  • Managing the storage structures of the database
  • Managing users and security
  • Managing database objects, such as tables, indexes, and views
  • Backing up the database and performing recovery operations when necessary
  • Monitoring the state of the database and taking preventive or corrective action as required
  • Monitoring and tuning database performance
  • Diagnosing and reporting critical errors to Oracle Support Services
  • In a small to medium-sized database environment, you might be the sole person performing these tasks. In large, enterprise environments, the job is often divided among several DBAs, each of whom has a specialty, such as database security or database tuning.

    Tools for Administering the Database

    The goal of this guide is to enable you to quickly and efficiently create an Oracle database, and to provide guidance in basic database administration.

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