生成分析报告
调用@/home/orapaid/product/92/rdbms/admin/spreport生成
此过程中要输入开始快照 和 终止快照 编号
移除定时任务
SQL>execute dbms_job.remove('job_id');
删除历史数据
删除stats$snapshot表中数据 ,其他表中的数据会相应的级连删除
oracle提供了用于 truncate 这些统计信息表的 脚本
[orapaid@bj37 admin]$ cat sptrunc.sql
Rem
Rem $Header: sptrunc.sql 19-feb-2002.11:36:28 vbarrier Exp $
Rem
Rem sptrunc.sql
Rem
Rem Copyright (c) 2000, 2002, Oracle Corporation. All rights reserved.
Rem
Rem NAME
Rem sptrunc.sql - STATSPACK - Truncate tables
Rem
Rem DESCRIPTION
Rem Truncates data in Statspack tables
Rem
Rem NOTES
Rem Should be run as STATSPACK user, PERFSTAT.
Rem
Rem The following tables should NOT be truncated
Rem STATS$LEVEL_DESCRIPTION
Rem STATS$IDLE_EVENT
Rem STATS$STATSPACK_PARAMETER
Rem
Rem MODIFIED (MM/DD/YY)
Rem vbarrier 03/05/02 - Segment Statistics
Rem cdialeri 04/13/01 - 9.0
Rem cdialeri 09/12/00 - sp_1404195
Rem cdialeri 04/11/00 - 1261813
Rem cdialeri 03/15/00 - Created
Rem
undefine anystring
set showmode off echo off;
whenever sqlerror exit;
spool sptrunc.lis
/* ------------------------------------------------------------------------- */
prompt
prompt Warning
prompt ~~~~~~~
prompt Running sptrunc.sql removes ALL data from Statspack tables. You may
prompt wish to export the data before continuing.
prompt
prompt
prompt About to Truncate Statspack Tables
prompt ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prompt If you would like to continue, press <return>
prompt
prompt
prompt &return Entered - starting truncate operation
truncate table STATS$FILESTATXS;
truncate table STATS$TEMPSTATXS;
truncate table STATS$LATCH;
truncate table STATS$LATCH_CHILDREN;
truncate table STATS$LATCH_MISSES_SUMMARY;
truncate table STATS$LATCH_PARENT;
truncate table STATS$LIBRARYCACHE;
truncate table STATS$BUFFER_POOL_STATISTICS;
truncate table STATS$ROLLSTAT;
truncate table STATS$ROWCACHE_SUMMARY;
truncate table STATS$SGA;
truncate table STATS$SGASTAT;
truncate table STATS$SYSSTAT;
truncate table STATS$SESSTAT;
truncate table STATS$SYSTEM_EVENT;
truncate table STATS$SESSION_EVENT;
truncate table STATS$BG_EVENT_SUMMARY;
truncate table STATS$WAITSTAT;
truncate table STATS$ENQUEUE_STAT;
truncate table STATS$SQL_SUMMARY;
truncate table STATS$SQL_STATISTICS;
truncate table STATS$SQLTEXT;
truncate table STATS$PARAMETER;
truncate table STATS$RESOURCE_LIMIT;
truncate table STATS$DLM_MISC;
truncate table STATS$UNDOSTAT;
truncate table STATS$SQL_PLAN;
truncate table STATS$SQL_PLAN_USAGE;
truncate table STATS$SEG_STAT;
truncate table STATS$SEG_STAT_OBJ;
truncate table STATS$DB_CACHE_ADVICE;
truncate table STATS$PGASTAT;
truncate table STATS$INSTANCE_RECOVERY;
delete from STATS$SNAPSHOT;
delete from STATS$DATABASE_INSTANCE;
commit;
Rem This is required to allow further snapshots to work without
Rem recreating package or restarting the instance
alter package statspack compile;
prompt
prompt Truncate operation complete
prompt
/* ------------------------------------------------------------------------- */
spool off;
whenever sqlerror continue;
set echo on;
[orapaid@bj37 admin]$
