Set audit parameters with no startup - oracle

Question

I want to activate an audit operation on a table or two in my oracle db,
and for that I need to set the audit parameters.
alter system set AUDIT_SYS_OPERATIONS=true scope=spfile;
alter system set AUDIT_TRAIL=db, extended scope=spfile;
But those parameters not realy changed becuase startup of DB is needed.
Is there a way to skip over the startup to apply those changes?
This is realy important DB in production Env, and startup is almost-impossible.
Thank you.

Answer 1

If you just want to enable auditing on a selected objects then you can do it without bouncing your database instance. Audit trail is set to DB by default.
SQL> show parameter audit
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
audit_file_dest string /u01/app/oracle/admin/orcl/adu
mp
audit_sys_operations boolean FALSE
audit_syslog_level string
audit_trail string DB
All you need to do is to enable required auditing on that object.
SQL> conn jay
Enter password:
Connected.
SQL> audit select on my_table;
Audit succeeded.
SQL> conn system
Enter password:
Connected.
SQL> select * from jay.my_table;
no rows selected
Audit information can be accessed from USER_AUDIT_OBJECT view.
SQL> conn jay
Enter password:
Connected.
SQL> select username, action_name from user_audit_object where obj_name='MY_TABLE';
USERNAME ACTION_NAME
------------------------------ ----------------------------
SYSTEM SESSION REC
However, if you need to enable auditing for sysdba/sysoper privileged users such as sys then you need to set audit_sys_operations parameter to true which in turn requires database shutdown.
Moreover, if you are using Oracle 12c then AUDIT_SYS_OPERATIONS is set to true by default.
Connected to:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
SQL> show parameter audit
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
audit_file_dest string /u01/app/oracle/admin/orcl/adump
audit_sys_operations boolean TRUE
audit_syslog_level string
audit_trail string DB

Answer 2

you cant use it with no startup
look this (Auditing Administrative Users)