SQL> conn sys/admin as sysdba
SQL> alter user hr account unlock;
SQL> alter user hr identified by admin;
SQL> conn hr/admin;
SQL> select * from user_tables;

TABLE_NAME                     TABLESPACE_NAME
------------------------------ ------------------------------

REGIONS                        EXAMPLE
COUNTRIES
LOCATIONS                      EXAMPLE
DEPARTMENTS                    EXAMPLE
JOBS                           EXAMPLE
EMPLOYEES                      EXAMPLE
JOB_HISTORY                    EXAMPLE

以上就是示例的相关表了..

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