1. Uninstalling oracle before oracle11G will cause the uninstallation to be unclean and cause the installation to fail again. Run services.msc to open the service and stop all Oracle services.
Second, oracle11G comes with an uninstall batch \app\Administrator\product\11.2.0\dbhome_1\deinstall\deinstall.bat Running the batch program will automatically complete the oracle uninstallation, and finally manually delete the \app folder (may need to restart to delete)
During operation, you may need to fill in the following items:
- Specifies all single-instance listeners to unconfigure [LISTENER]:LISTENER
- Specifies a list of database names configured in this Oracle home [MYDATA,ORCL]: MYDATA,ORCL
- Do you still want to modify the details of the MYDATA,ORCL database? [n]: n
- CCR check is finished
- continue(y - yes, n - no)? [n]: y
3. Run the regedit command to open the registry. Delete the Oracle-related content in the registry, as follows:
- Delete the HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE directory.
- Delete all keys starting with oracle or OraWeb in HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services.
- Delete all keys starting with oracle in HKEY_LOCAL_MACHINE/SYSETM/CurrentControlSet/Services/Eventlog/application.
- Delete all keys prefixed with Ora, Oracle, Orcl or EnumOra in the HKEY_CLASSES_ROOT directory.
- Delete all keys starting with oracle in HKEY_CURRENT_USER/SOFTWARE/Microsoft/windows/CurrentVersion/Explorer/MenuOrder/Start Menu/Programs.
- Delete all keys containing Oracle except the Microsoft ODBC for Oracle registry key in HKDY_LOCAL_MACHINE/SOFTWARE/ODBC/ODBCINST.INI.
- Remove the value that contains Oracle in the PATHT CLASSPATH environment variable.
- Removes all Oracle groups and icons from Start/Programs.
- Delete all Oracle-related directories, including: (1), c:\Program file\Oracle directory. (2), ORACLE_BASE directory. (3), c:\Documents and Settings\system user name, temporary files in the LocalSettings\Temp directory.
Original article address:
http://blog.sina.com.cn/s/blog_68fe7e15010100an.html