How to delete oracle database

Oracle Database, also known as Oracle RDBMS, or Oracle for short. It is a relational database management system from Oracle Corporation. It is a product that has always been in the leading position in the database field. It can be said that the Oracle database system is currently a popular relational database management system in the world. The system has good portability, easy use, and strong functions. It is suitable for various large, medium, small, and microcomputer environments. It is a database solution with high efficiency, good reliability and adaptability to high throughput.

Oracle database uninstallation steps:

1. Close all Oracle services. It can be turned off in the Windows Service Manager;
2. Open the registry: regedit. Open the path:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ Delete all service names starting with oracle in this path. This key is Identifies various services registered by Oracle under Windows!
3. Open the registry and find the path:
HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE Delete the oracle directory. The software installation information of the Oracle database is registered in this directory.
4. Delete the registered oracle event log, open the registry HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\Application and delete all entries starting with oracle in the registry.
5. Delete the content about oracle in the environment variable path. Right-click "My Computer-->Properties-->Advanced-->Environment Variables-->PATH variable. Delete Oracle's content in this value. Note: A bunch of operations are recorded in path System directories are separated by semicolons (;) in Windows. Pay attention when deleting. Suggestion: When deleting the Oracle value in the PATH environment variable, copy all the values ​​to a text editor and find After deleting the corresponding Oracle value, copy the modified string and paste it into the PATH environment variable, which is relatively safe.
6. Restart the operating system.
The above 1~5 steps are completed After that, restart the operating system.
7. After restarting the operating system, various Oracle-related processes will not be loaded. At this time, delete all data under Oracle_Home. (Oracle_Home refers to the installation directory of the Oracle program)
8 , Delete the oracle directory under C:\Program Files. (This directory depends on the path where Oracle is installed)
9. Delete the oracle item under the start menu, such as: C:\Documents and Settings\All Users\"Start" menu \Programs\Oracle - Ora10g This directory is slightly different for different installations. If you do not delete the Oracle-related menu directory under the start menu, it does not matter. This will not affect the installation of Oracle again. When Oracle is installed again, this menu will be replaced.

Oracle is completely uninstalled under Windows platform

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