Delete Oracle databases/users under windwos

Oracle Database deletion under windwos:

1: run the universal installer command to uninstall oracle first.

2: Go to the Oracle installation directory and delete it like deleting a common file. You can't delete it. You can use 360 to delete the file crusher.

3: delete in the Registry: Win + R enter regedit, CTRL + F search for Oracle, and delete all the items you can see.

At this time, Oracle has been uninstalled.

 

Reinstall it.

Like common application software, the next step is to continue. You can test the system/Password

 

Sometimes oracle users need to be deleted,

Drop User Username cascade // all the following objects will be deleted

Modify user name:

Alter user SYS identified by new_password;