重建em档案时 报ORA-20001: SYSMAN already exists的解决方法

Logon SQLPLUS as user SYS or SYSTEM, and drop the sysman account and management objects:

SQL> drop user sysman cascade;

SQL> drop role MGMT_USER;

SQL> drop user MGMT_VIEW cascade;

SQL> drop public synonym MGMT_TARGET_BLACKOUTS;

SQL> drop public synonym SETEMVIEWUSERCONTEXT;