oracle数据库system表空间增长过大的问题

网上些解决方法，就是关闭审计，之前也有同事推荐这样，下面就是关闭审计的步骤。

VALUE=DB即审计开启，改成FALSE即可。

SQL> show parameter audit_trail;

NAME                     TYPE     VALUE
------------------------------------ ----------- ------------------------------
audit_trail                 string     DB
SQL> alter system set audit_trail=FALSE scope=spfile;

System altered.

SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.

Total System Global Area   bytes
Fixed Size             bytes
Variable Size           bytes
Database Buffers       bytes
Redo Buffers             bytes
Database mounted.
Database opened.
SQL> show parameter audit_trail;

NAME                     TYPE     VALUE
------------------------------------ ----------- ------------------------------
audit_trail                 string     FALSE
SQL> 

有时还需要将另一个参数修改

audit_sys_operations 如果这个参数值不是false，则需要修改成false

alter  system  set audit_sys_operations=FALSE  scope=spfile;

SQL> show  parameter  audit; 

NAME                     TYPE     VALUE
------------------------------------ ----------- ------------------------------
audit_file_dest              string     /u01/app/oracle/admin/oadb/adu
                         mp
audit_sys_operations             boolean     FALSE
audit_syslog_level             string
audit_trail                 string     FALSE
SQL>