What are the kinds of roles in oracle?

What are the kinds of roles in oracle?

Following are the kinds of roles available in oracle:

Connect
This role allows access to the table belonging to other users. It allows using Select, Insert, Update and Delete command.

Resource
With this role, one can create his own tables, sequences, procedures, triggers, indexes and clusters.

DBA
It has system privilege and can grant those privileges to other.
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