All about Oracle10g SYSAUX tablespace
SYSAUX表空间在Oracle Database 10g中引入,作为SYSTEM表空间的辅助表空间.
以前一些使用独立表空间或系统表空间的数据库组件现在在SYSAUX表空间中创建.
通过分离这些组件和功能，SYSTEM表空间的负荷得以减轻.反复创建一些相关对象及组件引起SYSTEM表空间的碎片问题得以避免。
如果SYSAUX表空间不可用,数据库核心功能将保持有效;使用SYSAUX表空间的特点将会失败或功能受限.
我们看一下数据库创建脚本：
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CREATE DATABASE "eygle"
MAXINSTANCES 8
MAXLOGHISTORY 1
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
DATAFILE '/opt/oracle/oradata/eygle/system01.dbf'
SIZE 300M REUSE AUTOEXTEND ON NEXT 10240K MAXSIZE UNLIMITED
EXTENT MANAGEMENT LOCAL
SYSAUX DATAFILE '/opt/oracle/oradata/eygle/sysaux01.dbf'
SIZE 120M REUSE AUTOEXTEND ON NEXT 10240K MAXSIZE UNLIMITED--SYSAUX表空间的创建
DEFAULT TEMPORARY TABLESPACE TEMP
TEMPFILE '/opt/oracle/oradata/eygle/temp01.dbf' SIZE 20M REUSE
AUTOEXTEND ON NEXT 640K MAXSIZE UNLIMITED
UNDO TABLESPACE "UNDOTBS1" DATAFILE '/opt/oracle/oradata/eygle/undotbs01.dbf'
SIZE 200M REUSE AUTOEXTEND ON NEXT 5120K MAXSIZE UNLIMITED
CHARACTER SET ZHS16GBK
NATIONAL CHARACTER SET AL16UTF16
LOGFILE GROUP 1 ('/opt/oracle/oradata/eygle/redo01.log') SIZE 10240K,
GROUP 2 ('/opt/oracle/oradata/eygle/redo02.log') SIZE 10240K,
GROUP 3 ('/opt/oracle/oradata/eygle/redo03.log') SIZE 10240K
USER SYS IDENTIFIED BY "&&sysPassword" USER SYSTEM IDENTIFIED BY "&&systemPassword";
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以下是使用SYSAUX表空间的数据库组件:
使用SYSAUX表空间的组件 以前版本所在表空间
Analytical Workspace Object Table SYSTEM
Enterprise Manager Repository OEM_REPOSITORY
LogMiner SYSTEM
Logical Standby SYSTEM
OLAP API History Tables CWMLITE
Oracle Data Mining ODM
Oracle Spatial SYSTEM
Oracle Streams SYSTEM
Oracle Text DRSYS
Oracle Ultra Search DRSYS
Oracle interMedia ORDPLUGINS Components SYSTEM
Oracle interMedia ORDSYS Components SYSTEM
Oracle interMedia SI_INFORMTN_SCHEMA Components SYSTEM
Server Manageability Components New in Oracle Database 10g
Statspack Repository User-defined
Unified Job Scheduler New in Oracle Database 10g
Workspace Manager SYSTEM
新增的V$SYSAUX_OCCUPANTS视图可以用来查看这些信息
SQL> select OCCUPANT_NAME,OCCUPANT_DESC,SCHEMA_NAME from V$SYSAUX_OCCUPANTS;
OCCUPANT_NAME OCCUPANT_DESC SCHEMA_NAME
------------- ---------------------------------------------------------------- ------------------
LOGMNR LogMiner SYSTEM
LOGSTDBY Logical Standby SYSTEM
STREAMS Oracle Streams SYS
AO Analytical Workspace Object Table SYS
XSOQHIST OLAP API History Tables SYS
SM/AWR Server Manageability - Automatic Workload Repository SYS
SM/ADVISOR Server Manageability - Advisor Framework SYS
SM/OPTSTAT Server Manageability - Optimizer Statistics History &n
