摘要：
以system用户登录，解锁HR用户,再以HR用户登录；sqlplus system/passwordSQL>alter user hr account unlock;SQL>alter user hr identified by hr;SQL>conn hr/hr1、创建物化视图日志SQL> create materialized view log on employees with rowid;Materialized view log created.查看物化视图日志结构SQL> desc mlog$_employees;Name Null? Type--- 阅读全文
