10g重建EM 报ORA-20001: SYSMAN already exists 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_US
背景:oracle默认的端口号是1521,但我们可以根据实际情况去调整,步骤如下(以目标端口号为1522为例) 1、调整监听文件里的端口号:NETWORK\ADMIN\listener.ora 2、修改实例的端口号 3、重启OracleOraDb11g_home1TNSListener监听服务 4、修改local_listener (1)登录 sqlplus / as sy