How to install and uninstall Oracle11g

1. Install oracle11g. The installation diagram is as follows:

1. decompress the win32_11gr2_database_1of2.zipand win32_11gr2_database5of2.zip files.

Note: extract the two files to the same directory, that is, merge the Components directories together.

2. Double-click setup.exe. The following installation wizard is displayed. Remove the "I wish to receive security updates via My Oracle Support" check box and click "Next"

3. In the following dialog box, click "Yes" <喎?http: www.bkjia.com kf ware vc " target="_blank" class="keylink"> VcD4KPHA + IDxpbWcgc3JjPQ = "http://www.2cto.com/uploadfile/Collfiles/20140331/201403310906534.jpg" alt = "\">

4. Select "Create and configure a database" and click "Next"

5. Select "Desktop Class" and click "Next"

6. On the configuration page, enter the administrator password, such as "password" and click "Next"

VII. Prerequisites for verification

8. On the overview page, click "Finish"

9. Install Oracle. Wait for completion.

10. After the installation is complete, create a database instance and wait for completion.

11. The installation is complete. Click "Password Management"

12. Find the HR and SCOTT users, remove the "Lock Account" check box, assign a new password, and click "OK"

13. Click "Yes"

14. Click "OK"

15. Click "Close" to complete installation

16. Oracle SQL Developer

17. After oracle is installed, how can we determine whether the installation is successful?

Start -- run -- cmd. Enter sqlplus scott/tiger and press Enter. scott is the account name and tiger is the default password.

Oracle11g

If the installation fails for the first time, we need to completely uninstall oracle and reinstall it. The uninstall tutorial is as follows:

The uninstallation program that comes with Oracle cannot fundamentally uninstall Oracle, which leaves a hidden danger for the next installation. How can we completely uninstall Oracle?
To clear the Registry directly, follow these steps:

1. Start-> Settings-> Control Panel-> management tools-> services
Stop all Oracle services.

2. Start-> Program-> Oracle-OraHome81-> Oracle Installation Products->
Universal Installer
Unmount all Oracle products, but the Universal Installer cannot be deleted.

5. Run regedit, select HKEY_LOCAL_MACHINE \ SOFTWARE \ ORACLE, and press del to delete the entry.

6. Run regedit, select HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services, and scroll
Delete all Oracle entries.

7. Run refedit,
HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ Eventlog \ Application,
Delete all Oracle entries.

8. Start-> set-> Control Panel-> system-> advanced-> environment variable
Delete Oracle settings in the environment variables CLASSPATH and PATH

9. Delete all groups and icons related to Oracle from the desktop, STARTUP group, and program menu.

10. Delete \ Program Files \ Oracle directory

11. restart the computer to completely delete the Oracle directory.

12. Delete Oracle-related files, and select the default Oracle directory C: \ Oracle.
Port directory and all subdirectories, and delete the oralce file from the Windows directory (generally C: \ WINDOWS.

13. If the [ORACLE] Tag segment exists in the WIN. ini file, delete it.

14. If necessary, delete all Oracle-related ODBC DSN

15. In Event Viewer, delete Oracle-related logs.

Note:
If some DLL files cannot be deleted, You can restart and start a new installation,
Select a new directory during installation. After the installation is completed and restarted, the old directory and files can be deleted.