1, install the software
Software Download: https://www.oracle.com/technetwork/cn/database/enterprise-edition/downloads/index.html
1.1, window installation and uninstallation
1.1.1, Oracle 12c installation steps
1.1.1.1, installer asks for your email address to get the latest updates and security issues. You can click the Next button to skip.
1.1.1.2, in this step, Oracle installer asks whether you want to create and configure the database, only to install or upgrade the database software only existing database. Because you first install the Oracle database, select the first option (Create and configure a database), and then click the Next button.
1.1.1.3, the installation program allows you to select the type of system. Because we are installing Oracle on a desktop computer, rather than the server, so, here select the first option: Desktop category (Desktop class), and then click the Next button.
1.1.1.4, in this step allows you to specify to install and configure Oracle Home to enhance the security of the Windows user account. Select the third option: "Use the built-in Windows account (Use Windows Built-in Account)".
1.1.1.5, in this step, select the file you want to install the Oracle database folder, the global database name and password, pluggable database name.
1.1.1.6, Setup performs prerequisite checks.
1.1.1.7, installer displays summary information, such as global settings, and other database information. If all goes well, you can review the information and click the Install button.
Confirm the installation?
Overview about to be installed:
1.1.1.8, Setup begins installing Oracle databases. Installation of speed depends on your computer's performance, take a few minutes to complete.
1.1.1.9, after successful completion of the installation, the installation program will notify the completion of the installation prompts, as shown in the screenshot below. Click the Close button to close the window.
1.1.2, Oracle 12c uninstall procedure
1.1.2.1, find the installation directory oracle \ product \ 12.2.0 \ dbhome_1 \ deinstall
1.1.2.2, the batch file execution deinstall.bat
1.1.2.3, according to a selection operation Uninstall