1、默認關閉統一審計
SYS@orcl1> SELECT VALUE FROM V$OPTION WHERE PARAMETER = ‘Unified Auditing‘;

VALUE
--------------------
FALSE

SYS@orcl1> 

2、關閉數據庫
[root@rac01 ~]# su - grid
Last login: Sun Jan 14 22:38:47 CST 2018 on pts/0
<rac01:+ASM1:/home/grid>$srvctl stop database -d orcl
<rac01:+ASM1:/home/grid>$

3、啟用統一審計
--RAC需要再多個節點都運行一下命令
[root@rac01 ~]# su - oracle
Last login: Wed Jan 17 22:37:23 CST 2018 on pts/1
<rac01:orcl1:/home/oracle>$cd $ORACLE_HOME/rdbms/lib
<rac01:orcl1:/u01/app/oracle/product/12.1.0/dbhome_1/rdbms/lib>$make -f ins_rdbms.mk uniaud_on ioracle ORACLE_HOME=$ORACLE_HOME

/usr/bin/ar d /u01/app/oracle/product/12.1.0/dbhome_1/rdbms/lib/libknlopt.a kzanang.o
/usr/bin/ar cr /u01/app/oracle/product/12.1.0/dbhome_1/rdbms/lib/libknlopt.a /u01/app/oracle/product/12.1.0/dbhome_1/rdbms/lib/kzaiang.o 
chmod 755 /u01/app/oracle/product/12.1.0/dbhome_1/bin

 - Linking Oracle 
 ....略.....

 4、啟動數據庫
 <rac01:+ASM1:/home/grid>$srvctl start database -d orcl  
<rac01:+ASM1:/home/grid>$

5、查看統一審計
 SYS@orcl1> col value for a20
SYS@orcl1> SELECT VALUE FROM V$OPTION WHERE PARAMETER = ‘Unified Auditing‘;

VALUE
--------------------
TRUE

SYS@orcl1> 

6、關閉統一審計命令
make -f ins_rdbms.mk uniaud_off ioracle
 

12c 新特性-統一審計（Unified Auditing）