select m.perms from tz_sys_user_role ur LEFT JOIN tz_sys_role_menu rm on ur.role_id = rm.role_id LEFT JOIN tz_sys_menu m on rm.menu_id = m.menu_id where ur.user_id = #{userId} delete from tz_sys_user where user_id in #{userId} select * from tz_sys_user where username = #{username}