Revoke a system privilege from a user, user-extended role, or user-defined role.
You must have administrative rights for the system privilege.
You cannot revoke privileges from the SYS role. You can revoke privileges from other system roles, provided that these privileges are not the default privileges for the system role.
Contexte et remarques
If a user has been granted exercise and administrative rights for a privilege, you can revoke the administration rights, or the exercise and administrative rights. You cannot revoke the exercise right (only), and leave the administrative right. To do this, revoke the system privilege entirely, and then regrant the system privilege with administrative rights only.
You cannot revoke system privileges from a compatibility role. However, you can migrate a compatibility role to a user-defined role, and then revoke privileges from the user-defined role.
Connect to the database.
Execute a REVOKE statement similar to the following:
REVOKE privilege FROM grantee;
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