2.1 About Creating an Oracle Database

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You typically create a database during Oracle Database software installation. However, you can also create a database after installation.

Reasons to create a database after installation are as follows:
  • You used Oracle Universal Installer (OUI) to install software only, and did not create a database.
  • You want to create another database (and database instance) on the same host computer as an existing Oracle database. In this case, this chapter assumes that the new database uses the same Oracle home as the existing database. You can also create the database in a new Oracle home by running OUI again.
  • You want to make a copy of (clone) a database.
The specific methods for creating a database are:
  • With Database Configuration Assistant (DBCA), a graphical tool.
  • With the CREATE DATABASE SQL statement.

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