How to delete a user in Oracle 10 including all it's tablespace and datafiles

Question

When I give the command to drop a user i.e. DROP USER \'username\' cascade,

1. Does it deletes all the tablespace and datafiles used by that particular user.

Answer 1

You can check which table space is used by which user with the following query.

SELECT USERNAME, DEFAULT_TABLESPACE FROM DBA_USERS;

You can also see the list of table spaces by looking at the following tables

DBA_TABLESPACES
USER_TABLESPACES