Fully uninstall oracle | uninstall oracle

The problem occurred when installing Oracle 10g. Later, I asked my roommates to re-send an Oralce 10g Client installation package and install it.

It was possible to use PL/SQL at the beginning. Later, due to work needs, an Oracle database backup was sent from an import colleague at a time, which was run in the command line

An error 6550 occurs when you use the IMP statement for import. The reason for online query is that the version used by the server and the client does not match. Therefore

We have to decide to reinstall Oracle and find it difficult to uninstall Oralce. It takes a lot of steps to completely uninstall it. The following summarizes some steps:

1. Stop all ORACLE-related services.

2. Use OUI (Oracle Universal Installer) to uninstall Oracle software.

"START"-> "Program"-> "Oracle-OraDb110g_home1 | Oracle installation product | Universal installer.

3. Delete the Registry content.

Run the regedit command to delete the HKEY_LOCAL_MACHINE | SOFTWARE | ORACLE registry key.

HKEY_LOCAL_MACHINE | SYSTEM | CurrentControlSet | Services: deletes all oracle-headed keys under the Services Key.

HKEY_LOCAL_MACHINE | SYSTEM | CurrentControlSet | Services | Eventlog | Application: deletes all oracle-dominated keys under this key.

HKEY_CLASSES_ROOT: delete all keys prefixed with Ora, Oracle, Orcl, and EnumOra.

HKEY_CURRENT_USER | Software | Microsoft | Windows | CurrentVersion | Explorer | MenuOrder | Start Menu | Programs, delete all oracle-headed keys under this key.

HKEY_LOCAL_MACHINE | SOFTWARE | ODBC | ODBCINST. INI registry key, which deletes all key values other than the Microsoft odbc for oracle registry key with the Oracle keyword.

HKEY _ No related items found on my system

LOCAL_MACHINE | SYSTEM | CurrentControlSet | Services, which deletes keys prefixed with Oracle or OraWeb.

4. Delete environment variables.

Delete the environment variable CLASSPATH. The PATH contains the Oracle value.

5. Finally, delete ORACLE-related files and directories in the file system: Delete the system drive letter: Progrm FilesOracle directory; Delete the ORACLE_BASE directory.

I cannot delete the D: oracle directory. It is deleted only after the machine is restarted.