tailieunhanh - Oracle Database 2 Day DBA 11g Release- P2

Oracle Database 2 Day DBA 11g Release- P2:Oracle Database 2 Day DBA is a database administration quick start guide that teaches you how to perform day-to-day database administrative tasks. The goal of this guide is to help you understand the concepts behind Oracle Database. It teaches you how to perform all common administrative tasks needed to keep the database operational, including how to perform basic troubleshooting and performance monitoring activities. | 2 Installing Oracle Database and Creating a Database This chapter describes how to install Oracle Database software and create a database. If you are using an earlier release of Oracle Database and want to install a later release of the Oracle Database software you can upgrade your existing Oracle Database and use it with the new release of the database software. See Upgrading a Database on page 12-9. This chapter contains the following sections Overview of Installing Oracle Database Software and Creating a Database Installing Oracle Database Software Using DBCA to Create and Configure a Database Installation Oracle By Example Series Overview of Installing Oracle Database Software and Creating a Database To install your Oracle Database software use Oracle Universal Installer OUI . OUI is a graphical user interface utility that enables you to view the Oracle Database software that is already installed on your computer install new Oracle Database software and deinstall Oracle Database software that you no longer intend to use. Online Help is available to guide you through the installation process. During the installation process you are given the opportunity to create a database. If you choose to do so OUI automatically starts Oracle Database Configuration Assistant DBCA to guide you through the process of creating and configuring a database. If you do not create a database during installation then you must run DBCA at some point after installation to create a database. Note After you create a database either during installation or as a standalone operation you do not need to create another. Each Oracle instance works with a single database only. Rather than requiring that you to create multiple databases to accommodate different applications Oracle Database uses a single database and accommodates multiple applications by enabling you to separate data into different schemas within the single database. See About User Accounts on page 7-1 for more information about .