Oracle Installation Guide

First, the Oracle Installation Guide:
Oracle does not charge for the use of, if you use in the work, you must remember to pay, do not make mistakes in payment.
Oracle's content is divided into two parts: the development section, the Management Section, and the focus on the development section.
To obtain an Oracle Setup program, you can log in: download on www.oracle.com
The download is two files, but these two files need to be synthesized when installing a file. However, it is strongly recommended before installation:
※ Close the firewall of your native computer
※ If possible to disconnect the Internet (must be off-screen)
(1) Click Setup

(2)

(3)

(4)

This does not involve Oracle's RAC management, and RAC is distributed management of Oracle.
(5)

To enable us to configure, select Advanced installation.
(6)

Language selection Simplified Chinese and English.
(7)

Select Oracle Enterprise Edition, which is the most complete.
(8)

Install Oracle here to the E-drive: E:\app\sunan\product\11.2.0\dbhome_1, the front app gives us the Sunan to make our computer's name, followed by the installation directory that he provided himself , save all of our Oracle execution paths.
(9)

(Ten)

Select Create database named ORCL.
(one)

sets the character encoding to UTF-8 encoding, and if you do not set it here, it is possible to have the Chinese garbled when you develop it later.
(a)

Create a sample database for easy learning

Since then is the next step to creating a password.
(+)

to facilitate the administration of all passwords unified to "oracleadmin" (all lowercase, but this spelling is not a naming standard for Oracle, can be ignored)
(+)

Next Check If the check error directly choose to ignore it, I just installed the system, no error occurred, and then click Finish to install.
(+)

for Oracle installation, you can do something else now, go to the bathroom, drink tea.
(+)

Where such an error occurs, the EM configuration fails, and the exact OEM configuration fails. Actually does not affect the use, is the Web management interface cannot use.
Workaround:
Change the host = localhost in Listener.ora to the computer name. My solution is to uninstall the reload, pay attention to where there is a problem, I have broken the network is good.

This will automatically create the database, but each database requires additional configuration. The password management program is then used. The main operation of the following several users (set classic password), the following is not the default is oracleadmin:
※ Super Administrator: Sys/change_on_install (user name and password)
※ General Manager: System/manager
※ Normal User: Scott/tiger, unlock
※ Big Data users (sample database only): Sh/sh unlock

To unlock Scott and SH, and set the above password, basically done.

After Oracle is installed, Oracle's services are automatically started and the service is set to start manually.
You only need to start two services per boot:
※oracleoradb11g_home1tnslistener: is a listening service, if you want to connect to the Oracle database through a program or a different client, the service must be started, otherwise it cannot be connected, the native operation is not required.
※ORACLESERVICEORCL: database instance service, its naming standard: Oracleservicesid, a similar service name will appear automatically whenever a database is added to the system. Where the SID is the Oracle service identifier, the default is the same as the global database name when the database is installed, and the SID name is used on the network.
Second, Oracle Uninstall
Oracle Uninstall: Oracle may fail to install immediately after uninstallation
Oracle Normal installation Complete
Using an uninstall program from Oracle
Restart your computer and enter Safe Mode (press and hold F8 at startup)
Locate the corresponding disk path on the system, and remove
Run the registry command "Regedit.exe", search all Oracle-related content, and delete. Ctrl+f
Restart your computer and perform the installation again.
Oracle Installation failed:
Ignore the first step to perform the next four steps, or reinstall the system.

Oracle Installation Guide