oracle等待事件1：Failed Logon delay等待事件

 

該等待事件是因為用戶登陸密碼錯誤。

 

開啟審計日志並查看登陸密碼錯誤的用戶或程序

SQL>alter system set audit_trail=db scope=both;

SQL>shutdown immediate;

SQL>startup;

SQL>audit create session;

SQL>audit alter user;

select * from sys.aud$ where returncode='1017';

select * from dba_audit_trail where username='';

 

關閉審計日志：

alter system set audit_trail=none scope=spfile;