一、.查察SYSTEM表空间前9大的段
SQL> set lines 120
SQL> col owner for a30
SQL> col segment_name for a30
SQL> col owner for a30
SQL> SELECT
2 FROM (SELECT BYTES, segment_name, segment_type, owner
3 FROM dba_segments
4 WHERE tablespace_name = 'SYSTEM'
5 ORDER BY BYTES DESC)
6 WHERE ROWNUM < 10;
BYTES SEGMENT_NAME SEGMENT_TYPE OWNER
8053063680 AUD$ TABLE SYS
285212672 C_OBJ#_INTCOL# CLUSTER SYS
285212672 IDL_UB1$ TABLE SYS
75497472 SOURCE$ TABLE SYS
49283072 I_H_OBJ#_COL# INDEX SYS
47185920 HIST_HEAD$ TABLE SYS
33554432 IDL_UB2$ TABLE SYS
27262976 I_HH_OBJ#_COL# INDEX SYS
26214400 I_HH_OBJ#_INTCOL# INDEX SYS
9 rows selected.
二、原因
数据库开启了审计,可以通过参数查察。
SQL> show parameter audit_trail;
NAME TYPE VALUE
audit_trail string DB
SQL>
三、办理要领
1、清理aud$段
truncate table aud$;
2、进一步可以封锁审计,通过修改audit_trail=none,需要重启数据库