11.18号-------Oracle Database 10g中配置statspack的方法

首先进行一些基本的设置

1.SQL*PLUS中输入

SQL>conn assysdba;

SQL>altersystemsetjob_queue_processes=6;--自动执行数据收集时该参数需要大于0

SQL>altersystemsettimed_statistics=true;

--使用statspack收集统计信息时建议将该值设置为TRUE，否则收集的统计信息大约只能起到10%的作用

这句话不能少，否则下面的语句不会执行成功

在创建表空间createtablespaceperfstatdatafile‘d:/test_perfstat.dbf’size500M;

SQL>@C:\oracle\ora92\rdbms\admin\spcreate.sql;

输入perfstat_password的值:perfstat

输入default_tablespace的值:perfstat

输入temporary_tablespace的值:temp

NOTE:

SPCPKGcomplete.Pleasecheckspcpkg.lisforanyerrors.

--需要出现上述语句才算成功，否则请查看.lis文件并执行，进行重建

SQL>@C:\oracle\ora92\rdbms\admin\spdrop.sql

SQL>@C:\oracle\ora92\rdbms\admin\spcreate.sql;

2.查看文件夹会产生三个文件

C:\oracle\ora92\bin

spcpkg.lis

spctab.lis

spcusr.lis

3.手动执行STATSPACK收集统计信息

SQL>showuser

USER为"PERFSTAT"

SQL>executestatspack.snap;

4.生成STATSPACK调整报告

SQL>@C:\oracle\ora92\rdbms\admin\spreport.sql;

CurrentInstance

~~~~~~~~~~~~~~~~

DBIdDBNameInstNumInstance

-------------------------------------------

357371480COLM1colm

InstancesinthisStatspackschema

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

DBIdInstNumDBNameInstanceHost

-------------------------------------------------------

3573714801COLMcolmSTEVENHUANG3

Using357371480fordatabaseId

Using1forinstancenumber

CompletedSnapshots

SnapSnap

InstanceDBNameIdSnapStartedLevelComment

-------------------------------------------------------------------------

colmCOLM11110月200621:55

0

21110月200621:55

0

SpecifytheBeginandEndSnapshotIds

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

输入begin_snap的值:1

输入end_snap的值:2

EndSnapshotIdspecified:2

SpecifytheReportName

~~~~~~~~~~~~~~~~~~~~~~~

Thedefaultreportfilenameissp_1_2.Tousethisname,

press<return></return>tocontinue,otherwiseenteranalternative.

输入report_name的值:report1.txt

EndofReport

5.查看产生的report1文档

C:\oracle\ora92\bin\report1.txt

6.自动执行STATSPACK收集统计信息

SQL>@C:\oracle\ora92\rdbms\admin\spauto.sql;

Jobnumberforautomatedstatisticscollectionforthisinstance

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Notethatthisjobnumberisneededwhenmodifyingorremoving

thejob:

JOBNO

----------

1

Jobqueueprocess

~~~~~~~~~~~~~~~~~

Belowisthecurrentsettingofthejob_queue_processesinit.ora

parameter-thevalueforthisparametermustbegreater

than0touseautomaticstatisticsgathering:

NAME_COL_PLUS_SHOW_PARAM

------------------------------------------------------------------------------

TYPE

----------------------

VALUE_COL_PLUS_SHOW_PARAM

------------------------------------------------------------------------------

job_queue_processes

integer

6

Nextscheduledrun

~~~~~~~~~~~~~~~~~~

Thenextscheduledrunforthisjobis:

JOBNEXT_DATE

--------------------

NEXT_SEC

----------------------------------------------------------------

111-10月-06

23:00:00

spauto.sql中主要调用dbms_job.submit，默认每小时收集1次（1/24）

variablejobnonumber;

variableinstnonumber;

begin

selectinstance_numberinto:instnofromv$instance;

dbms_job.submit(:jobno,'statspack.snap;',trunc(sysdate+1/24,'HH'),'trunc(SYSDATE+1/24,''HH'')',TRUE,:instno);

commit;

end;

/

可以通过修改这个值设置采集时间

1/24HH每小时一次

1/48MI每半小时一次

1/144MI每十分钟一次

1/288MI每五分钟一次

7.移除自动执行STATSPACK收集

SQL>selectjob,log_user,priv_user,last_date,next_date,intervalfromuser_jobs;--先查看当前自动收集的jobs

SQL>executedbms_job.remove('1');--移除任务1

8．删除统计资料（statspack相关的所有系统表）

SQL>selectmax(snap_id)fromstats$snapshot;

SQL>@C:\oracle\ora92\rdbms\admin\sptrunc.sql;

Warning

~~~~~~~

Runningsptrunc.sqlremovesALLdatafromStatspacktables.Youmay

wishtoexportthedatabeforecontinuing.

AbouttoTruncateStatspackTables

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Ifyouwouldliketocontinue,press<return></return>

输入return的值:

Entered-startingtruncateoperation