昨天开发人员反映SIT环境用户登录缓慢,我使用sqlplus登录数据库查找原因时遇到ORA-00020错误,检查告警日志发现大量ORA-00020错误,如下: Wed Jul 01 15:50:01 2015 ORA-00020: maximum number of processes (600) exceeded ORA-20 errors will not be written to the alert log for the next minute. Please look a ...