Normally, it is simplest to drop and add the user. This is the preferred method if you have system or sysdba access to the database.
If you don’t have system level access, and want to scrub your schema, the following sql will produce a series of drop statments, which can then be executed. Note: be sure you are connected as the schema owner, would be tragic to drop system tables….
select ‘drop ‘||object_type||’ ‘|| object_name|| DECODE(OBJECT_TYPE,’TABLE’,’ CASCADE CONSTRAINTS;’,’;’)
Then, can purge the recycle bin to really clean things up:
This will produce a list of drop statements. Not all of them will execute – if you drop with cascade, dropping the PK_* indices will fail. But in the end, you will have a pretty clean schema. Confirm with:
select * from user_objects