[root@fossdb ~]# su - oracle

[oracle@fossdb ~]$ sqlplus / as sysdba

sql*Plus: Release 11.2.0.3.0 Production on Wed Jul 12 09:54:57 2017

Copyright (c) 1982,2011,Oracle. All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning,OLAP,Data Mining and Real Application Testing options

sql> show parameter audit_trail；//查看审计功能是否开启，DB是开启的意思

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

audit_trail string DB

sql> alter system set audit_trail=FALSE scope=spfile; //关闭审计功能

System altered.

sql> show parameter audit_trail

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

audit_trail string DB

sql>

sql> shutdown immediate; //要重启才会生效

sql> startup;

删除表空间中的审计日志

truncate table sys.Aud$