Data Dictionary Views in Oracle

Oracle data dictionary views will start with any one of 3 character strings i.e. starts with DBA_ or ALL_ or USER_

DBA_ views --> All information and objects in the Oracle data dictionary. These will be accessible by users having DBA privileges.

ALL_ views --> All information and objects accessible by a user.

USER_ views --> All information and objects owned by a user.


e.g: DBA_SYNONYMS, ALL_SYNONYMS, USER_SYNONYMS