User Information in the Data Dictionary

Information about users can be found in the following two data dictionary views:

  • DBA_USERS lists all the users in the database and their database-related characteristics. ALL_USERS provides the username, user_id, and created columns, so is limited in its usefulness, and there is no user_users view.

  • Information on the tablespace quotas can be found by querying the DBA_TS_QUOTAS data dictionary view.

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