【ASH】如何導出視圖DBA_HIST_ACTIVE_SESS_HISTORY的查詢結果數據

時間 2019-11-06

標籤 ASH 如何導出視圖 dba hist active sess history 查詢結果數據欄目 SQL 简体版

原文原文鏈接

【ASH】如何導出視圖DBA_HIST_ACTIVE_SESS_HISTORY的查詢結果數據html

1.1 BLOG文檔結構圖

1.2 前言部分

1.2.1 導讀和注意事項

各位技術愛好者，看完本文後，你能夠掌握以下的技能，也能夠學到一些其它你所不知道的知識，~O(∩_∩)O~：java

① 如何導出ASH數據--利用exp導出基表的數據（重點）sql

② 12c的expdp參數VIEWS_AS_TABLES選項數據庫

③ expdp工具不能導出哪些對象？安全

Tips：
① 本文在itpub（http://blog.itpub.net/26736162）、博客園(http://www.cnblogs.com/lhrbest)和微信公衆號（xiaomaimiaolhr）上有同步更新。微信

② 文章中用到的全部代碼、相關軟件、相關資料及本文的pdf版本都請前往小麥苗的雲盤下載，小麥苗的雲盤地址見：http://blog.itpub.net/26736162/viewspace-1624453/。網絡

③ 若網頁文章代碼格式有錯亂，請下載pdf格式的文檔來閱讀。session

④ 在本篇BLOG中，代碼輸出部分通常放在一行一列的表格中。oracle

本文若有錯誤或不完善的地方請你們多多指正，您的批評指正是我寫做的最大動力。app

1.2.2 相關文章連接

12c的dmp文件導入11g中參考：【故障處理】IMP-00010錯誤 12C的dmp文件導入11G，地址爲：http://blog.itpub.net/26736162/viewspace-2128197/

1.2.3 本文簡介

衆所周知，視圖只是一個查詢數據的窗口，其不存儲數據，因此在使用exp等工具導出的時候只能導出其定義，而不能導出視圖的查詢結果數據。在Oracle 12c中，能夠採用expdp中的一個新增參數VIEWS_AS_TABLES來將視圖做爲表來導出，很是實用，不過對於一些特殊的表仍然不能採用expdp導出，例如SYS和SYSTEM下的一些表，AUD$表不能使用expdp來導出。

另外，對於一些安全類很高的系統是不容許隨意建立表，也不容許使用PLSQL Developer等客戶端的工具，那麼如果查詢DBA_HIST_ACTIVE_SESS_HISTORY等視圖的時候就很是不方便了，這個時候咱們能夠將該視圖的內容導出來，而後導入到咱們本身的測試庫中就能夠隨意的進行分析了。那麼，如何來導出這些數據的內容呢？本文將詳細介紹這些內容。

1.3 如何導出ash數據？

根據前邊的分析，咱們知道視圖的查詢結果數據不能直接導出，那麼咱們能夠導出這個視圖的基表數據：

SELECT D.NAME, D.TYPE, D.REFERENCED_NAME, D.REFERENCED_TYPE

FROM DBA_DEPENDENCIES D

WHERE D.NAME IN ('DBA_HIST_ACTIVE_SESS_HISTORY',

'DBA_HIST_PLAN_OPERATION_NAME',

'DBA_HIST_PLAN_OPTION_NAME',

'DBA_HIST_SQLCOMMAND_NAME',

'DBA_HIST_TOPLEVELCALL_NAME')

AND D.TYPE = 'VIEW'

ORDER BY D.NAME, D.REFERENCED_NAME;

主要涉及的表是圖中方框裏的去掉X$表後的7個表，其中最主要的仍是WRH$_ACTIVE_SESSION_HISTORY表，該表是一個分區表，導出的時候能夠按照時間進行導出。其它表都是很小的表，能夠全量導出。

下面嘗試使用exp和expdp來導出。

1.3.1 expdp導出sys用戶下的表報錯ORA-39165 和ORA-39166

[oracle@orcltest ~]$ more /tmp/expdp_ash_lhr_01.par

query=SYS.WRH$_ACTIVE_SESSION_HISTORY:"WHERE SAMPLE_TIME BETWEEN TO_DATE('2016-12-02 08:30:00', 'YYYY-MM-DD HH24:MI:SS') AND TO_DATE('2016-12-08 23:38:00', 'YYYY-MM-DD HH24:MI:SS')"

[oracle@orcltest ~]$

[oracle@orcltest ~]$ expdp \'/ AS SYSDBA\' directory=DATA_PUMP_DIR tables='SYS.WRH$_ACTIVE_SESSION_HISTORY','SYS.WRM$_SNAPSHOT','SYS.WRH$_EVENT_NAME','SYS.WRH$_SQLCOMMAND_NAME','SYS.WRH$_PLAN_OPERATION_NAME','SYS.WRH$_PLAN_OPTION_NAME','SYS.WRH$_TOPLEVELCALL_NAME' dumpfile=expdp_ash_lhr_01.dmp parfile=/tmp/expdp_ash_lhr_01.par EXCLUDE=STATISTICS VERSION=11.2.0.1 REUSE_DUMPFILES=Y

Export: Release 11.2.0.3.0 - Production on Fri Dec 16 16:49:52 2016

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, Automatic Storage Management, OLAP, Data Mining

and Real Application Testing options

Starting "SYS"."SYS_EXPORT_TABLE_03": "/******** AS SYSDBA" directory=DATA_PUMP_DIR tables=SYS.WRH$_ACTIVE_SESSION_HISTORY,SYS.WRM$_SNAPSHOT,SYS.WRH$_EVENT_NAME,SYS.WRH$_SQLCOMMAND_NAME,SYS.WRH$_PLAN_OPERATION_NAME,SYS.WRH$_PLAN_OPTION_NAME,SYS.WRH$_TOPLEVELCALL_NAME dumpfile=expdp_ash_lhr_01.dmp parfile=/tmp/expdp_ash_lhr_01.par EXCLUDE=STATISTICS VERSION=11.2.0.1 REUSE_DUMPFILES=Y

Estimate in progress using BLOCKS method...

Total estimation using BLOCKS method: 0 KB

ORA-39166: Object SYS.WRH$_ACTIVE_SESSION_HISTORY was not found.

ORA-39166: Object SYS.WRM$_SNAPSHOT was not found.

ORA-39166: Object SYS.WRH$_EVENT_NAME was not found.

ORA-39166: Object SYS.WRH$_SQLCOMMAND_NAME was not found.

ORA-39166: Object SYS.WRH$_PLAN_OPERATION_NAME was not found.

ORA-39166: Object SYS.WRH$_PLAN_OPTION_NAME was not found.

ORA-39166: Object SYS.WRH$_TOPLEVELCALL_NAME was not found.

ORA-31655: no data or metadata objects selected for job

Job "SYS"."SYS_EXPORT_TABLE_03" completed with 8 error(s) at 16:49:53

查詢MOS：

DataPump Export (EXPDP) Fails With Error ORA-39165: Schema SYS Was Not Found (文檔 ID 553402.1)

該文章給出了以下答案：

1. There is a restriction on dataPump export. It cannot export schemas like SYS, ORDSYS, EXFSYS, MDSYS, DMSYS, CTXSYS, ORDPLUGINS, LBACSYS, XDB, SI_INFORMTN_SCHEMA, DIP, DBSNMP and WMSYS in any mode.

2. The Utilities Guide indicates the restriction only on full export mode, but the restriction actually applies to all modes.

而：MOS：Why Can an Object Not Be Exported? Expdp of SYSTEM User's Table Returns ORA-39166 or ORA-31655 (文檔 ID 2114233.1)列出來了哪些對象不能導出：

Objects (tables, views, schemas, etc) which fall under either of below conditions are not exported with expdp because they are regarded as system maintained objects.

Object is listed in ku_noexp_view.

This view is a union of ku_noexp_tab and noexp$ tables.

Objects that are listed in this view are not exported.

Object is ORACLE_MAINTAINED='Y' in ALL_OBJECTS (and DBA_OBJECTS).----針對12c

在視圖sys.Ku_Noexp_View中或DBA_OBJECTS的ORACLE_MAINTAINED列爲Y的對象不能導出。

SELECT * FROM sys.Ku_Noexp_View d WHERE d.name LIKE '%WRH%' ;

SELECT * FROM DBA_OBJECTS d WHERE d.ORACLE_MAINTAINED='Y' AND D.object_name LIKE 'WR%';

解決該報錯的方法是：

1. 使用exp 導出

2.ctas的方法在不受限制的schema下建立表，而後導出該新建的表

3. use the DBMS_AUDIT_MGMT package of Audit Vault to manage and purge audit data (see Note 731908.1). This allows for the facility to move the AUD$ table out of the SYSTEM tablespace, which can negate the need to export the table.

注意：This issue also applies to other SYS owned auditing tables such as FGA_LOG$

1.3.2 採用exp導出ASH數據

1.3.2.1 方法1：ctas建表導出，有的客戶不讓建表

CREATE TABLE ASH_TEMP_20161219 NOLOGGING AS

SELECT *

FROM DBA_HIST_ACTIVE_SESS_HISTORY D

WHERE D.SAMPLE_TIME BETWEEN

TO_DATE('2016-12-01 02:00:00', 'YYYY-MM-DD HH24:MI:SS') AND

TO_DATE('2016-12-17 06:00:00', 'YYYY-MM-DD HH24:MI:SS')

;

exp \'/ AS SYSDBA\' tables=ASH_TEMP_20161219 file=/tmp/exp_ASH_TEMP_20161219.dmp log=/tmp/ASH_TEMP_20161117.log buffer=41943040

imp lhr/lhr tables=ASH_TEMP_20161219 file=/tmp/ASH_TEMP_20161219.dmp log=/tmp/imp_ASH_TEMP_20161117.log buffer=41943040

實驗過程：

[oracle@orcltest ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Mon Dec 19 09:51:09 2016

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, Automatic Storage Management, OLAP, Data Mining

and Real Application Testing options

SYS@lhrdb> CREATE TABLE ASH_TEMP_20161219 NOLOGGING AS

2 SELECT *

3 FROM DBA_HIST_ACTIVE_SESS_HISTORY D

4 WHERE D.SAMPLE_TIME BETWEEN

5 TO_DATE('2016-12-01 02:00:00', 'YYYY-MM-DD HH24:MI:SS') AND

6 TO_DATE('2016-12-17 06:00:00', 'YYYY-MM-DD HH24:MI:SS')

7 ;

Table created.

SYS@lhrdb> exit

Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, Automatic Storage Management, OLAP, Data Mining

and Real Application Testing options

[oracle@orcltest ~]$

[oracle@orcltest ~]$ exp \'/ AS SYSDBA\' tables=ASH_TEMP_20161219 file=/tmp/ASH_TEMP_20161219.dmp log=/tmp/ASH_TEMP_20161219.log buffer=41943040

Export: Release 11.2.0.3.0 - Production on Mon Dec 19 09:51:44 2016

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, Automatic Storage Management, OLAP, Data Mining

and Real Application Testing options

Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set

About to export specified tables via Conventional Path ...

. . exporting table ASH_TEMP_20161219 102 rows exported

Export terminated successfully without warnings.

[oracle@orcltest ~]$ imp lhr/lhr tables=ASH_TEMP_20161219 file=/tmp/ASH_TEMP_20161219.dmp log=/tmp/ASH_TEMP_20161117.log buffer=41943040

Import: Release 11.2.0.3.0 - Production on Mon Dec 19 09:52:20 2016

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, Automatic Storage Management, OLAP, Data Mining

and Real Application Testing options

Export file created by EXPORT:V11.02.00 via conventional path

Warning: the objects were exported by SYS, not by you

import done in ZHS16GBK character set and AL16UTF16 NCHAR character set

. importing SYS's objects into LHR

. . importing table "ASH_TEMP_20161219" 102 rows imported

Import terminated successfully without warnings.

[oracle@orcltest ~]$

1.3.2.2 方法2：導出基表的數據

導出基表數據：

---more /tmp/exp_ash_lhr_01.par

query="WHERE SAMPLE_TIME BETWEEN TO_DATE('2016-12-02 08:30:00', 'YYYY-MM-DD HH24:MI:SS') AND TO_DATE('2016-12-08 23:38:00', 'YYYY-MM-DD HH24:MI:SS')"

exp \'/ AS SYSDBA\' tables='WRH$_ACTIVE_SESSION_HISTORY' file=/tmp/exp_ash_lhr_01.dmp parfile=/tmp/exp_ash_lhr_01.par log=/tmp/exp_ash_lhr_01.log GRANTS=N CONSTRAINTS=N STATISTICS=NONE

exp \'/ AS SYSDBA\' tables='WRM$_SNAPSHOT','WRH$_EVENT_NAME','WRH$_SQLCOMMAND_NAME','WRH$_PLAN_OPERATION_NAME','WRH$_PLAN_OPTION_NAME','WRH$_TOPLEVELCALL_NAME' file=/tmp/exp_ash_lhr_02.dmp log=/tmp/exp_ash_lhr_02.log GRANTS=N CONSTRAINTS=N STATISTICS=NONE

導入到測試用戶：

imp lhr/lhr file=/tmp/exp_ash_lhr_01.dmp tables='WRH$_ACTIVE_SESSION_HISTORY' log=/tmp/imp_ash_lhr_01.log FROMUSER=SYS TOUSER=LHR

imp lhr/lhr file=/tmp/exp_ash_lhr_02.dmp tables='WRM$_SNAPSHOT','WRH$_EVENT_NAME','WRH$_SQLCOMMAND_NAME','WRH$_PLAN_OPERATION_NAME','WRH$_PLAN_OPTION_NAME','WRH$_TOPLEVELCALL_NAME' log=/tmp/imp_ash_lhr_02.log FROMUSER=SYS TOUSER=LHR

DROP TABLE LHR.WRH$_ACTIVE_SESSION_HISTORY PURGE;

DROP TABLE LHR.WRM$_SNAPSHOT PURGE;

DROP TABLE LHR.WRH$_EVENT_NAME PURGE;

DROP TABLE LHR.WRH$_SQLCOMMAND_NAME PURGE;

DROP TABLE LHR.WRH$_PLAN_OPERATION_NAME PURGE;

DROP TABLE LHR.WRH$_PLAN_OPTION_NAME PURGE;

DROP TABLE LHR.WRH$_TOPLEVELCALL_NAME PURGE;

實驗：

[oracle@orcltest ~]$ more /tmp/exp_ash_lhr_01.par

query="WHERE SAMPLE_TIME BETWEEN TO_DATE('2016-12-02 08:30:00', 'YYYY-MM-DD HH24:MI:SS') AND TO_DATE('2016-12-08 23:38:00', 'YYYY-MM-DD HH24:MI:SS')"

[oracle@orcltest ~]$ exp \'/ AS SYSDBA\' tables='WRH$_ACTIVE_SESSION_HISTORY' file=/tmp/exp_ash_lhr_01.dmp parfile=/tmp/exp_ash_lhr_01.par log=/tmp/exp_ash_lhr_01.log GRANTS=N CONSTRAINTS=N STATISTICS=NONE

Export: Release 11.2.0.3.0 - Production on Mon Dec 19 10:25:05 2016

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, Automatic Storage Management, OLAP, Data Mining

and Real Application Testing options

Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set

Note: grants on tables/views/sequences/roles will not be exported

Note: constraints on tables will not be exported

About to export specified tables via Conventional Path ...

. . exporting table WRH$_ACTIVE_SESSION_HISTORY

. . exporting partition WRH$_ACTIVE_971836524_0 55 rows exported

. . exporting partition WRH$_ACTIVE_971836524_35 0 rows exported

. . exporting partition WRH$_ACTIVE_SES_MXDB_MXSN 0 rows exported

Export terminated successfully without warnings.

[oracle@orcltest ~]$ exp \'/ AS SYSDBA\' tables='WRM$_SNAPSHOT','WRH$_EVENT_NAME','WRH$_SQLCOMMAND_NAME','WRH$_PLAN_OPERATION_NAME','WRH$_PLAN_OPTION_NAME','WRH$_TOPLEVELCALL_NAME' file=/tmp/exp_ash_lhr_02.dmp log=/tmp/exp_ash_lhr_02.log GRANTS=N CONSTRAINTS=N STATISTICS=NONE

Export: Release 11.2.0.3.0 - Production on Mon Dec 19 10:25:12 2016

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, Automatic Storage Management, OLAP, Data Mining

and Real Application Testing options

Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set

Note: grants on tables/views/sequences/roles will not be exported

Note: constraints on tables will not be exported

About to export specified tables via Conventional Path ...

. . exporting table WRM$_SNAPSHOT 23 rows exported

. . exporting table WRH$_EVENT_NAME 1152 rows exported

. . exporting table WRH$_SQLCOMMAND_NAME 165 rows exported

. . exporting table WRH$_PLAN_OPERATION_NAME 130 rows exported

. . exporting table WRH$_PLAN_OPTION_NAME 165 rows exported

. . exporting table WRH$_TOPLEVELCALL_NAME 151 rows exported

Export terminated successfully without warnings.

[oracle@orcltest ~]$ imp lhr/lhr file=/tmp/exp_ash_lhr_01.dmp tables='WRH$_ACTIVE_SESSION_HISTORY' log=/tmp/imp_ash_lhr_01.log FROMUSER=SYS TOUSER=LHR

Import: Release 11.2.0.3.0 - Production on Mon Dec 19 10:28:37 2016

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, Automatic Storage Management, OLAP, Data Mining

and Real Application Testing options

Export file created by EXPORT:V11.02.00 via conventional path

Warning: the objects were exported by SYS, not by you

import done in ZHS16GBK character set and AL16UTF16 NCHAR character set

. importing SYS's objects into LHR

. . importing partition "WRH$_ACTIVE_SESSION_HISTORY":"WRH$_ACTIVE_971836524_0" 55 rows imported

. . importing partition "WRH$_ACTIVE_SESSION_HISTORY":"WRH$_ACTIVE_971836524_35" 0 rows imported

. . importing partition "WRH$_ACTIVE_SESSION_HISTORY":"WRH$_ACTIVE_SES_MXDB_MXSN" 0 rows imported

Import terminated successfully without warnings.

[oracle@orcltest ~]$

[oracle@orcltest ~]$ imp lhr/lhr file=/tmp/exp_ash_lhr_02.dmp tables='WRM$_SNAPSHOT','WRH$_EVENT_NAME','WRH$_SQLCOMMAND_NAME','WRH$_PLAN_OPERATION_NAME','WRH$_PLAN_OPTION_NAME','WRH$_TOPLEVELCALL_NAME' log=/tmp/imp_ash_lhr_02.log FROMUSER=SYS TOUSER=LHR

Import: Release 11.2.0.3.0 - Production on Mon Dec 19 10:27:26 2016

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, Automatic Storage Management, OLAP, Data Mining

and Real Application Testing options

Export file created by EXPORT:V11.02.00 via conventional path

Warning: the objects were exported by SYS, not by you

import done in ZHS16GBK character set and AL16UTF16 NCHAR character set

. importing SYS's objects into LHR

. . importing table "WRM$_SNAPSHOT" 23 rows imported

. . importing table "WRH$_EVENT_NAME" 1152 rows imported

. . importing table "WRH$_SQLCOMMAND_NAME" 165 rows imported

. . importing table "WRH$_PLAN_OPERATION_NAME" 130 rows imported

. . importing table "WRH$_PLAN_OPTION_NAME" 165 rows imported

. . importing table "WRH$_TOPLEVELCALL_NAME" 151 rows imported

Import terminated successfully without warnings.

[oracle@orcltest ~]$

接下來就是根據這些基表來建立本身的視圖了，再也不詳述。

1.3.3 12c expdp VIEWS_AS_TABLES選項

expdp VIEWS_AS_TABLES選項能夠將視圖看作表並將其數據導出。

expdp system/lhr DIRECTORY=data_pump_dir DUMPFILE=expdp_vw.dmp LOGFILE=expdp_vw.log VIEWS_AS_TABLES=lhr.my_view

表數據準備：

create table lhr.my_tab1 (nr number, txt varchar2(10));

insert into lhr.my_tab1 values (1,'Line 1');

insert into lhr.my_tab1 values (2,'Line 2');

create table lhr.my_tab2 (nr number, col2 number, col3 varchar2(10));

insert into lhr.my_tab2 values (1,1,'c3_1');

insert into lhr.my_tab2 values (2,2,'c3_2');

commit;

create view lhr.my_view (nr, txt, col3) as

select t1.nr, t1.txt, t2.col3

from lhr.my_tab1 t1, lhr.my_tab2 t2

where t1.nr=t2.nr;

開始導出：

C:\Users\xiaomaimiao>expdp system/lhr DIRECTORY=data_pump_dir DUMPFILE=expdp_vw.dmp LOGFILE=expdp_vw.log VIEWS_AS_TABLES=lhr.my_view

Export: Release 12.1.0.2.0 - Production on 星期五 12月 16 16:31:49 2016

鏈接到: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production

With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options

啓動 "SYSTEM"."SYS_EXPORT_TABLE_01": system/******** DIRECTORY=data_pump_dir DUMPFILE=expdp_vw.dmp LOGFILE=expdp_vw.log VIEWS_AS_TABLES=lhr.my_view

正在使用 BLOCKS 方法進行估計...

處理對象類型 TABLE_EXPORT/VIEWS_AS_TABLES/TABLE_DATA

使用 BLOCKS 方法的總估計: 16 KB

處理對象類型 TABLE_EXPORT/VIEWS_AS_TABLES/TABLE

. . 導出了 "LHR"."MY_VIEW" 5.929 KB 2 行

已成功加載/卸載了主表 "SYSTEM"."SYS_EXPORT_TABLE_01"

******************************************************************************

SYSTEM.SYS_EXPORT_TABLE_01 的轉儲文件集爲:

E:\APP\ORACLE\ADMIN\LHRDB12C\DPDUMP\EXPDP_VW.DMP

做業 "SYSTEM"."SYS_EXPORT_TABLE_01" 已於星期五 12月 16 16:32:36 2016 elapsed 0 00:00:31 成功完成

查看其DDL語句：

C:\Users\xiaomaimiao>impdp system/lhr DIRECTORY=data_pump_dir DUMPFILE=expdp_vw.dmp LOGFILE=impdp_vw.log sqlfile=a.txt

Import: Release 12.1.0.2.0 - Production on 星期五 12月 16 16:35:14 2016

鏈接到: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production

With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options

已成功加載/卸載了主表 "SYSTEM"."SYS_SQL_FILE_FULL_01"

啓動 "SYSTEM"."SYS_SQL_FILE_FULL_01": system/******** DIRECTORY=data_pump_dir DUMPFILE=expdp_vw.dmp LOGFILE=impdp_vw.log sqlfile=a.txt

處理對象類型 TABLE_EXPORT/VIEWS_AS_TABLES/TABLE

做業 "SYSTEM"."SYS_SQL_FILE_FULL_01" 已於星期五 12月 16 16:35:26 2016 elapsed 0 00:00:10 成功完成

DDL語句內容：

-- CONNECT SYSTEM

ALTER SESSION SET EVENTS '10150 TRACE NAME CONTEXT FOREVER, LEVEL 1';

ALTER SESSION SET EVENTS '10904 TRACE NAME CONTEXT FOREVER, LEVEL 1';

ALTER SESSION SET EVENTS '25475 TRACE NAME CONTEXT FOREVER, LEVEL 1';

ALTER SESSION SET EVENTS '10407 TRACE NAME CONTEXT FOREVER, LEVEL 1';

ALTER SESSION SET EVENTS '10851 TRACE NAME CONTEXT FOREVER, LEVEL 1';

ALTER SESSION SET EVENTS '22830 TRACE NAME CONTEXT FOREVER, LEVEL 192 ';

-- new object type path: TABLE_EXPORT/VIEWS_AS_TABLES/TABLE

CREATE TABLE "LHR"."MY_VIEW"

("NR" NUMBER,

"TXT" VARCHAR2(10 BYTE),

"COL3" VARCHAR2(10 BYTE)

) SEGMENT CREATION DEFERRED

PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255

NOCOMPRESS LOGGING

TABLESPACE "USERS" ;

進行導入：

C:\Users\xiaomaimiao>sqlplus / as sysdba

SQL*Plus: Release 12.1.0.2.0 Production on 星期五 12月 16 16:37:03 2016

鏈接到:

Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production

With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options

SQL> create user lhr01 identified by lhr;

用戶已建立。

SQL> grant dba to lhr01;

受權成功。

SQL> exit

從 Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production

With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options 斷開

C:\Users\xiaomaimiao>impdp system/lhr DIRECTORY=data_pump_dir DUMPFILE=expdp_vw.dmp LOGFILE=impdp_vw.log remap_schema=lhr:lhr01

Import: Release 12.1.0.2.0 - Production on 星期五 12月 16 16:39:49 2016

鏈接到: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production

With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options

已成功加載/卸載了主表 "SYSTEM"."SYS_IMPORT_FULL_02"

啓動 "SYSTEM"."SYS_IMPORT_FULL_02": system/******** DIRECTORY=data_pump_dir DUMPFILE=expdp_vw.dmp LOGFILE=impdp_vw.log remap_schema=lhr:lhr01

處理對象類型 TABLE_EXPORT/VIEWS_AS_TABLES/TABLE

處理對象類型 TABLE_EXPORT/VIEWS_AS_TABLES/TABLE_DATA

. . 導入了 "LHR01"."MY_VIEW" 5.929 KB 2 行

做業 "SYSTEM"."SYS_IMPORT_FULL_02" 已於星期五 12月 16 16:39:57 2016 elapsed 0 00:00:06 成功完成

1.4 小結

--- 方法1：ctas建表導出有的客戶不讓建表

CREATE TABLE ASH_TEMP_20161117 NOLOGGING AS

SELECT *

FROM DBA_HIST_ACTIVE_SESS_HISTORY D

WHERE D.SAMPLE_TIME BETWEEN

TO_DATE('2016-11-10 02:00:00', 'YYYY-MM-DD HH24:MI:SS') AND

TO_DATE('2016-11-17 06:00:00', 'YYYY-MM-DD HH24:MI:SS')

;

exp \'/ AS SYSDBA\' tables=ASH_TEMP_20161117 file=/tmp/ASH_TEMP_20161117.dmp log=/tmp/ASH_TEMP_20161117.log buffer=41943040

--- 方法2：導出基表的數據

採用exp導出ASH數據的命令：

---more /tmp/exp_ash_lhr_01.par

query="WHERE SAMPLE_TIME BETWEEN TO_DATE('2016-12-02 08:30:00', 'YYYY-MM-DD HH24:MI:SS') AND TO_DATE('2016-12-08 23:38:00', 'YYYY-MM-DD HH24:MI:SS')"

exp \'/ AS SYSDBA\' tables='WRH$_ACTIVE_SESSION_HISTORY' file=/tmp/exp_ash_lhr_01.dmp parfile=/tmp/exp_ash_lhr_01.par log=/tmp/exp_ash_lhr_01.log GRANTS=N CONSTRAINTS=N STATISTICS=NONE

imp lhr/lhr file=/tmp/exp_ash_lhr_01.dmp tables='WRH$_ACTIVE_SESSION_HISTORY' log=/tmp/imp_ash_lhr_01.log FROMUSER=SYS TOUSER=LHR

DROP TABLE LHR.WRH$_ACTIVE_SESSION_HISTORY PURGE;

DROP TABLE LHR.WRM$_SNAPSHOT PURGE;

DROP TABLE LHR.WRH$_EVENT_NAME PURGE;

DROP TABLE LHR.WRH$_SQLCOMMAND_NAME PURGE;

DROP TABLE LHR.WRH$_PLAN_OPERATION_NAME PURGE;

DROP TABLE LHR.WRH$_PLAN_OPTION_NAME PURGE;

DROP TABLE LHR.WRH$_TOPLEVELCALL_NAME PURGE;

建立本身的ASH視圖：

---- 11.2.0.3

create or replace view dh_ash_11g_lhr

(snap_id, dbid, instance_number, sample_id, sample_time, session_id, session_serial#, session_type, flags, user_id, sql_id, is_sqlid_current, sql_child_number, sql_opcode, sql_opname, force_matching_signature, top_level_sql_id, top_level_sql_opcode, sql_plan_hash_value, sql_plan_line_id, sql_plan_operation, sql_plan_options, sql_exec_id, sql_exec_start, plsql_entry_object_id, plsql_entry_subprogram_id, plsql_object_id, plsql_subprogram_id, qc_instance_id, qc_session_id, qc_session_serial#, px_flags, event, event_id, seq#, p1text, p1, p2text, p2, p3text, p3, wait_class, wait_class_id, wait_time, session_state, time_waited, blocking_session_status, blocking_session, blocking_session_serial#, blocking_inst_id, blocking_hangchain_info, current_obj#, current_file#, current_block#, current_row#, top_level_call#, top_level_call_name, consumer_group_id, xid, remote_instance#, time_model, in_connection_mgmt, in_parse, in_hard_parse, in_sql_execution, in_plsql_execution, in_plsql_rpc, in_plsql_compilation, in_java_execution, in_bind, in_cursor_close, in_sequence_load, capture_overhead, replay_overhead, is_captured, is_replayed, service_hash, program, module, action, client_id, machine, port, ecid, dbreplay_file_id, dbreplay_call_counter, tm_delta_time, tm_delta_cpu_time, tm_delta_db_time, delta_time, delta_read_io_requests, delta_write_io_requests, delta_read_io_bytes, delta_write_io_bytes, delta_interconnect_io_bytes, pga_allocated, temp_space_allocated)

select /* ASH/AWR meta attributes */

ash.snap_id, ash.dbid, ash.instance_number,

ash.sample_id, ash.sample_time,

/* Session/User attributes */

ash.session_id, ash.session_serial#,

decode(ash.session_type, 1,'FOREGROUND', 'BACKGROUND'),

ash.flags,

ash.user_id,

/* SQL attributes */

ash.sql_id,

decode(bitand(ash.flags, power(2, 4)), NULL, 'N', 0, 'N', 'Y'),

ash.sql_child_number, ash.sql_opcode,

(select command_name from WRH$_SQLCOMMAND_NAME

where command_type = ash.sql_opcode

and dbid = ash.dbid) as sql_opname,

ash.force_matching_signature,

decode(ash.top_level_sql_id, NULL, ash.sql_id, ash.top_level_sql_id),

decode(ash.top_level_sql_id, NULL, ash.sql_opcode,

ash.top_level_sql_opcode),

/* SQL Plan/Execution attributes */

ash.sql_plan_hash_value,

decode(ash.sql_plan_line_id, 0, to_number(NULL), ash.sql_plan_line_id),

(select operation_name from WRH$_PLAN_OPERATION_NAME

where operation_id = ash.sql_plan_operation#

and dbid = ash.dbid) as sql_plan_operation,

(select option_name from WRH$_PLAN_OPTION_NAME

where option_id = ash.sql_plan_options#

and dbid = ash.dbid) as sql_plan_options,

decode(ash.sql_exec_id, 0, to_number(NULL), ash.sql_exec_id),

ash.sql_exec_start,

/* PL/SQL attributes */

decode(ash.plsql_entry_object_id,0,to_number(NULL),

ash.plsql_entry_object_id),

decode(ash.plsql_entry_object_id,0,to_number(NULL),

ash.plsql_entry_subprogram_id),

decode(ash.plsql_object_id,0,to_number(NULL),

ash.plsql_object_id),

decode(ash.plsql_object_id,0,to_number(NULL),

ash.plsql_subprogram_id),

/* PQ attributes */

decode(ash.qc_session_id, 0, to_number(NULL), ash.qc_instance_id),

decode(ash.qc_session_id, 0, to_number(NULL), ash.qc_session_id),

decode(ash.qc_session_id, 0, to_number(NULL), ash.qc_session_serial#),

decode(ash.px_flags, 0, to_number(NULL), ash.px_flags),

/* Wait event attributes */

decode(ash.wait_time, 0, evt.event_name, NULL),

decode(ash.wait_time, 0, evt.event_id, NULL),

ash.seq#,

evt.parameter1, ash.p1,

evt.parameter2, ash.p2,

evt.parameter3, ash.p3,

decode(ash.wait_time, 0, evt.wait_class, NULL),

decode(ash.wait_time, 0, evt.wait_class_id, NULL),

ash.wait_time,

decode(ash.wait_time, 0, 'WAITING', 'ON CPU'),

ash.time_waited,

(case when ash.blocking_session = 4294967295

then 'UNKNOWN'

when ash.blocking_session = 4294967294

then 'GLOBAL'

when ash.blocking_session = 4294967293

then 'UNKNOWN'

when ash.blocking_session = 4294967292

then 'NO HOLDER'

when ash.blocking_session = 4294967291

then 'NOT IN WAIT'

else 'VALID'

end),

(case when ash.blocking_session between 4294967291 and 4294967295

then to_number(NULL)

else ash.blocking_session

end),

(case when ash.blocking_session between 4294967291 and 4294967295

then to_number(NULL)

else ash.blocking_session_serial#

end),

(case when ash.blocking_session between 4294967291 and 4294967295

then to_number(NULL)

else ash.blocking_inst_id

end),

(case when ash.blocking_session between 4294967291 and 4294967295

then NULL

else decode(bitand(ash.flags, power(2, 3)), NULL, 'N',

0, 'N', 'Y')

end),

/* Session's working context */

ash.current_obj#, ash.current_file#, ash.current_block#,

ash.current_row#, ash.top_level_call#,

(select top_level_call_name from WRH$_TOPLEVELCALL_NAME

where top_level_call# = ash.top_level_call#

and dbid = ash.dbid) as top_level_call_name,

decode(ash.consumer_group_id, 0, to_number(NULL),

ash.consumer_group_id),

ash.xid,

decode(ash.remote_instance#, 0, to_number(NULL), ash.remote_instance#),

ash.time_model,

decode(bitand(ash.time_model,power(2, 3)),0,'N','Y')

as in_connection_mgmt,

decode(bitand(ash.time_model,power(2, 4)),0,'N','Y')as in_parse,

decode(bitand(ash.time_model,power(2, 7)),0,'N','Y')as in_hard_parse,

decode(bitand(ash.time_model,power(2,10)),0,'N','Y')as in_sql_execution,

decode(bitand(ash.time_model,power(2,11)),0,'N','Y')

as in_plsql_execution,

decode(bitand(ash.time_model,power(2,12)),0,'N','Y')as in_plsql_rpc,

decode(bitand(ash.time_model,power(2,13)),0,'N','Y')

as in_plsql_compilation,

decode(bitand(ash.time_model,power(2,14)),0,'N','Y')

as in_java_execution,

decode(bitand(ash.time_model,power(2,15)),0,'N','Y')as in_bind,

decode(bitand(ash.time_model,power(2,16)),0,'N','Y')as in_cursor_close,

decode(bitand(ash.time_model,power(2,17)),0,'N','Y')as in_sequence_load,

decode(bitand(ash.flags,power(2,5)),NULL,'N',0,'N','Y')

as capture_overhead,

decode(bitand(ash.flags,power(2,6)), NULL,'N',0,'N','Y' )

as replay_overhead,

decode(bitand(ash.flags,power(2,0)),NULL,'N',0,'N','Y') as is_captured,

decode(bitand(ash.flags,power(2,2)), NULL,'N',0,'N','Y' )as is_replayed,

/* Application attributes */

ash.service_hash, ash.program,

ash.module module,

ash.action action,

ash.client_id,

ash.machine, ash.port, ash.ecid,

/* DB Replay info */

ash.dbreplay_file_id, ash.dbreplay_call_counter,

/* stash columns */

ash.tm_delta_time,

ash.tm_delta_cpu_time,

ash.tm_delta_db_time,

ash.delta_time,

ash.delta_read_io_requests,

ash.delta_write_io_requests,

ash.delta_read_io_bytes,

ash.delta_write_io_bytes,

ash.delta_interconnect_io_bytes,

ash.pga_allocated,

ash.temp_space_allocated

from WRM$_SNAPSHOT sn, WRH$_ACTIVE_SESSION_HISTORY ash, WRH$_EVENT_NAME evt

where ash.snap_id = sn.snap_id(+)

and ash.dbid = sn.dbid(+)

and ash.instance_number = sn.instance_number(+)

and ash.dbid = evt.dbid

and ash.event_id = evt.event_id;

---------- 12c

create or replace view dh_ash_12c_lhr

(snap_id, dbid, instance_number, sample_id, sample_time, session_id, session_serial#, session_type, flags, user_id, sql_id, is_sqlid_current, sql_child_number, sql_opcode, sql_opname, force_matching_signature, top_level_sql_id, top_level_sql_opcode, sql_plan_hash_value, sql_full_plan_hash_value, sql_adaptive_plan_resolved, sql_plan_line_id, sql_plan_operation, sql_plan_options, sql_exec_id, sql_exec_start, plsql_entry_object_id, plsql_entry_subprogram_id, plsql_object_id, plsql_subprogram_id, qc_instance_id, qc_session_id, qc_session_serial#, px_flags, event, event_id, seq#, p1text, p1, p2text, p2, p3text, p3, wait_class, wait_class_id, wait_time, session_state, time_waited, blocking_session_status, blocking_session, blocking_session_serial#, blocking_inst_id, blocking_hangchain_info, current_obj#, current_file#, current_block#, current_row#, top_level_call#, top_level_call_name, consumer_group_id, xid, remote_instance#, time_model, in_connection_mgmt, in_parse, in_hard_parse, in_sql_execution, in_plsql_execution, in_plsql_rpc, in_plsql_compilation, in_java_execution, in_bind, in_cursor_close, in_sequence_load, in_inmemory_query, in_inmemory_populate, in_inmemory_prepopulate, in_inmemory_repopulate, in_inmemory_trepopulate, capture_overhead, replay_overhead, is_captured, is_replayed, service_hash, program, module, action, client_id, machine, port, ecid, dbreplay_file_id, dbreplay_call_counter, tm_delta_time, tm_delta_cpu_time, tm_delta_db_time, delta_time, delta_read_io_requests, delta_write_io_requests, delta_read_io_bytes, delta_write_io_bytes, delta_interconnect_io_bytes, pga_allocated, temp_space_allocated, dbop_name, dbop_exec_id, con_dbid/*, con_id*/)

select /* ASH/AWR meta attributes */

ash.snap_id, ash.dbid, ash.instance_number,

ash.sample_id, ash.sample_time,

/* Session/User attributes */

ash.session_id, ash.session_serial#,

decode(ash.session_type, 1,'FOREGROUND', 'BACKGROUND'),

ash.flags,

ash.user_id,

/* SQL attributes */

ash.sql_id,

decode(bitand(ash.flags, power(2, 4)), NULL, 'N', 0, 'N', 'Y'),

ash.sql_child_number, ash.sql_opcode,

(select command_name

from WRH$_SQLCOMMAND_NAME s

where s.command_type = ash.sql_opcode

and s.dbid = ash.dbid

and s.con_dbid = ash.dbid) as sql_opname,

ash.force_matching_signature,

decode(ash.top_level_sql_id, NULL, ash.sql_id, ash.top_level_sql_id),

decode(ash.top_level_sql_id, NULL, ash.sql_opcode,

ash.top_level_sql_opcode),

/* SQL Plan/Execution attributes */

ash.sql_plan_hash_value,

ash.sql_full_plan_hash_value,

ash.sql_adaptive_plan_resolved,

decode(ash.sql_plan_line_id, 0, to_number(NULL), ash.sql_plan_line_id),

(select operation_name

from WRH$_PLAN_OPERATION_NAME pn

where pn.operation_id = ash.sql_plan_operation#

and pn.dbid = ash.dbid

and pn.con_dbid = ash.dbid) as sql_plan_operation,

(select option_name

from WRH$_PLAN_OPTION_NAME po

where po.option_id = ash.sql_plan_options#

and po.dbid = ash.dbid

and po.con_dbid = ash.dbid) as sql_plan_options,

decode(ash.sql_exec_id, 0, to_number(NULL), ash.sql_exec_id),

ash.sql_exec_start,

/* PL/SQL attributes */

decode(ash.plsql_entry_object_id,0,to_number(NULL),

ash.plsql_entry_object_id),

decode(ash.plsql_entry_object_id,0,to_number(NULL),

ash.plsql_entry_subprogram_id),

decode(ash.plsql_object_id,0,to_number(NULL),

ash.plsql_object_id),

decode(ash.plsql_object_id,0,to_number(NULL),

ash.plsql_subprogram_id),

/* PQ attributes */

decode(ash.qc_session_id, 0, to_number(NULL), ash.qc_instance_id),

decode(ash.qc_session_id, 0, to_number(NULL), ash.qc_session_id),

decode(ash.qc_session_id, 0, to_number(NULL), ash.qc_session_serial#),

decode(ash.px_flags, 0, to_number(NULL), ash.px_flags),

/* Wait event attributes */

decode(ash.wait_time, 0, evt.event_name, NULL),

decode(ash.wait_time, 0, evt.event_id, NULL),

ash.seq#,

evt.parameter1, ash.p1,

evt.parameter2, ash.p2,

evt.parameter3, ash.p3,

decode(ash.wait_time, 0, evt.wait_class, NULL),

decode(ash.wait_time, 0, evt.wait_class_id, NULL),

ash.wait_time,

decode(ash.wait_time, 0, 'WAITING', 'ON CPU'),

ash.time_waited,

(case when ash.blocking_session = 4294967295

then 'UNKNOWN'

when ash.blocking_session = 4294967294

then 'GLOBAL'

when ash.blocking_session = 4294967293

then 'UNKNOWN'

when ash.blocking_session = 4294967292

then 'NO HOLDER'

when ash.blocking_session = 4294967291

then 'NOT IN WAIT'

else 'VALID'

end),

(case when ash.blocking_session between 4294967291 and 4294967295

then to_number(NULL)

else ash.blocking_session

end),

(case when ash.blocking_session between 4294967291 and 4294967295

then to_number(NULL)

else ash.blocking_session_serial#

end),

(case when ash.blocking_session between 4294967291 and 4294967295

then to_number(NULL)

else ash.blocking_inst_id

end),

(case when ash.blocking_session between 4294967291 and 4294967295

then NULL

else decode(bitand(ash.flags, power(2, 3)), NULL, 'N',

0, 'N', 'Y')

end),

/* Session's working context */

ash.current_obj#, ash.current_file#, ash.current_block#,

ash.current_row#, ash.top_level_call#,

(select top_level_call_name

from WRH$_TOPLEVELCALL_NAME t

where top_level_call# = ash.top_level_call#

and t.dbid = ash.dbid

and t.con_dbid = ash.dbid) as top_level_call_name,

decode(ash.consumer_group_id, 0, to_number(NULL),

ash.consumer_group_id),

ash.xid,

decode(ash.remote_instance#, 0, to_number(NULL), ash.remote_instance#),

ash.time_model,

decode(bitand(ash.time_model,power(2, 3)),0,'N','Y')

as in_connection_mgmt,

decode(bitand(ash.time_model,power(2, 4)),0,'N','Y')as in_parse,

decode(bitand(ash.time_model,power(2, 7)),0,'N','Y')as in_hard_parse,

decode(bitand(ash.time_model,power(2,10)),0,'N','Y')as in_sql_execution,

decode(bitand(ash.time_model,power(2,11)),0,'N','Y')

as in_plsql_execution,

decode(bitand(ash.time_model,power(2,12)),0,'N','Y')as in_plsql_rpc,

decode(bitand(ash.time_model,power(2,13)),0,'N','Y')

as in_plsql_compilation,

decode(bitand(ash.time_model,power(2,14)),0,'N','Y')

as in_java_execution,

decode(bitand(ash.time_model,power(2,15)),0,'N','Y')as in_bind,

decode(bitand(ash.time_model,power(2,16)),0,'N','Y')as in_cursor_close,

decode(bitand(ash.time_model,power(2,17)),0,'N','Y')as in_sequence_load,

decode(bitand(ash.time_model,power(2,18)),0,'N','Y')as in_inmemory_query,

decode(bitand(ash.time_model,power(2,19)),0,'N','Y')

as in_inmemory_populate,

decode(bitand(ash.time_model,power(2,20)),0,'N','Y')

as in_inmemory_prepopulate,

decode(bitand(ash.time_model,power(2,21)),0,'N','Y')

as in_inmemory_repopulate,

decode(bitand(ash.time_model,power(2,22)),0,'N','Y')

as in_inmemory_trepopulate,

decode(bitand(ash.flags,power(2,5)),NULL,'N',0,'N','Y')

as capture_overhead,

decode(bitand(ash.flags,power(2,6)), NULL,'N',0,'N','Y' )

as replay_overhead,

decode(bitand(ash.flags,power(2,0)),NULL,'N',0,'N','Y') as is_captured,

decode(bitand(ash.flags,power(2,2)), NULL,'N',0,'N','Y' )as is_replayed,

/* Application attributes */

ash.service_hash, ash.program,

ash.module module,

ash.action action,

ash.client_id,

ash.machine, ash.port, ash.ecid,

/* DB Replay info */

ash.dbreplay_file_id, ash.dbreplay_call_counter,

/* stash columns */

ash.tm_delta_time,

ash.tm_delta_cpu_time,

ash.tm_delta_db_time,

ash.delta_time,

ash.delta_read_io_requests,

ash.delta_write_io_requests,

ash.delta_read_io_bytes,

ash.delta_write_io_bytes,

ash.delta_interconnect_io_bytes,

ash.pga_allocated,

ash.temp_space_allocated,

ash.dbop_name,

ash.dbop_exec_id,

decode(ash.con_dbid, 0, ash.dbid, ash.con_dbid)/*,

con_dbid_to_id(decode(ash.con_dbid, 0, ash.dbid, ash.con_dbid)) con_id*/

from WRM$_SNAPSHOT sn, WRH$_ACTIVE_SESSION_HISTORY ash, WRH$_EVENT_NAME evt

where ash.snap_id = sn.snap_id(+)

and ash.dbid = sn.dbid(+)

and ash.instance_number = sn.instance_number(+)

and ash.dbid = evt.dbid

and ash.event_id = evt.event_id;

About Me

...............................................................................................................................

● 本文做者：小麥苗，只專一於數據庫的技術，更注重技術的運用

● 本文在itpub（http://blog.itpub.net/26736162）、博客園（http://www.cnblogs.com/lhrbest）和我的微信公衆號（xiaomaimiaolhr）上有同步更新

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