The Oracle Data Dictionary contains information about data base objects, users and events. You can access this information through these views of the data dictionary. For details on how these views/tables are structured and how they are used, please refer to the Oracle Data Base Reference documentation.

View Description
USER_ROLE_PRIVS Roles granted to the user.
USER_TABLES aka TABSDescription of the user's own tables.
USER_TAB_COLUMNS aka COLSColumns of user's tables, views and clusters.
USER_TAB_PRIVS Grants on objects for which the user is the owner, grantor or grantee
USER_VIEWS Test of views owned by the user.
USER_TRIGGERS Descriptions of the user's triggers
USER_OBJECTS aka OBJObjects owned by the user
USER_INDEXES aka INDDescription of the user's own indexes
USER_IND_COLUMNS Columns of the user's indexes or on user's tables
USER_SEQUENCES Description of the user's own sequences
USER_SOURCE The text source of the stored objects