Export performance on oracle 9i

We have newly installed Oracle DB on 2 Linux Servers
Perfromance on both is found to be slow as compared to
Oracle DB on the other server LINUX
The Export activity (for 100K records) in AutoClass on various servers gives
following figures:
D1- 2min
D2 : 5hrs
D3 : 14 hrs;;
Can you tell mi configuration / settings and differences between them and
suggest the changes that would be required.which parameter I want to check for the fast export in the oracle database..? How I improve the speed of export

Do the three machines have equal specifications? Are the databases all the same (same size, parameters,...)?
Cheers,
Andy Barry

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Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
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sunlisa (guest) wrote:
: I created an oracle database in 7.3.4.4 using the import dump
: from oracle version 7.3.3.5. I checked the log, it all appeared
: normal. When I do a full export (with system user)I got the
: following error right at the start ...
: Connected to: Oracle7 Server Release 7.3.4.4.0 - Production
: With the distributed option
: PL/SQL Release 2.3.4.4.0 - Production
: Export done in US7ASCII character set
: About to export the entire database ...
: . exporting tablespace definitions
: . exporting profiles
: . exporting user definitions
: . exporting roles
: . exporting resource costs
: . exporting rollback segment definitions
: . exporting database links
: . exporting sequence numbers
: . exporting snapshots
: . exporting snapshot logs
: . exporting job queues
: . exporting refresh groups and children
: . exporting cluster definitions
: . about to export SYSTEM's tables via Conventional Path ...
: . . exporting table DEF$_CALL
: 0 rows exported
: EXP-00008: ORACLE error 904 encountered
: ORA-00904: invalid column name
: EXP-00008: ORACLE error 1003 encountered
: ORA-01003: no statement parsed
: . . exporting table SYSTEM_IO
: 2714 rows exported
: . . exporting table HELPLINK 15067
: rows exported
: . . exporting table HELPSCREEN 3391
: rows exported
: . . exporting table HELPTEXT 6240
: rows exported
: . . exporting table HELP_FIELDS 2958
: rows exported
: . . exporting table IC 594
: rows exported
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: ORA-01003: no statement parsed
: EXP-00008: ORACLE error 1003 encountered
: ORA-01003: no statement parsed
: . . exporting table DEVICE_NOTE 0
: rows exported
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: ORA-01003: no statement parsed
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: rows exported
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NLS_CHARACTERSET               US7ASCII
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NLS_NCHAR_CHARACTERSET         AL16UTF16
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te_03-07-2013Wed.dmp fromuser=system touser=cglbyte ignore=y
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Copyright (c) 1982, 2007, Oracle. All rights reserved.
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tion
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Export file created by EXPORT:V08.01.07 via conventional path
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Pl suggest remedy
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8.1.7
AMERICAN_AMERICA.WE8ISO8859P1
10.2.0
AMERICAN_AMERICA.WE8MSWIN1252
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제품 : ORACLE SERVER
작성날짜 : 2004-03-17
EXPORT 시 QUERY OPTION에 대한 사용 예(ORACLE 8I 이상)
============================================
PURPOSE
============
oracle 8i에서 export 시 query option에 대한 사용 예
8i에서 export의 query syntax 를 이용하여 table data의 한 부분만 exporting 이 가능
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- Direct 옵션은 사용될 수 없다..
- where 절에 해당하는 export utility는 query parameter 를 사용한다.
UNIX syntax:
- Example:
1.SCOTT.Emp table의 ename 이 JAME과 비슷한 이름의 data 를 export ..
exp scott/tiger query=\"where ename like \'JAME%\'\" tables=emp file=exp.dmp log=exp.log
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exp scott/tiger query=\"where st=\'NY\'\" tables=(employee,cust) file=exp.dmp log=exp.log
query 문장에서 UNIX reserved characters( ", ', ,< .. 등) 를 사용하는 경우에는 escape ('\') 을 반드시 사용해야 한다.
예)query=\"where JOB = \'SALESMAN\' and salary \< 1600\"
더 중요한 것은 command line에서 export option을 사용할때는 반드시 escape 이 있어야 하나
parfile을 사용할때는 eacape이 불필요하다.
예를 보면 .. p라는 이름의 file을 다음과 같이 생성
tables=emp query="where job='SALESMAN'"
parfile을 이용해서 export 를 실행해 보면
[rmtdchp6]/apac/rdbms/64bit/app/oracle/product/9.2.0> exp scott/tiger parfile=p
Export: Release 9.2.0.4.0 - Production on Wed Mar 17 00:12:34 2004
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses KO16KSC5601 character set (possible charset conversion)
About to export specified tables via Conventional Path ...
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와 같이 정상 처리 됨을 알수 있다.
만일 command line에서 위의 내용을 실행하게 되면 다음과 같이 error 를 만난다.
exp scott/tiger tables=emp query="where job='SALESMAN'"
LRM-00101: unknown parameter name 'job'
EXP-00019: failed to process parameters, type 'EXP HELP=Y' for help
EXP-00000: Export terminated unsuccessfully
command line에는 query 내에 single(')나 double quotes(") 를 사용한다면 반드시 double quotes(") 를 사용하여
query 문을 묶어야 한다.그러나 query 내에서 single ('')나 double quotes(") 를 사용하지 않는다면 single quotes (')을 사용하여
query 문을 수행할 수도 있다..
다음 예를 보면..
1>exp scott/tiger tables=emp query=\'where deptno=20\'
Export: Release 9.2.0.4.0 - Production on Wed Mar 17 00:22:00 2004
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses KO16KSC5601 character set (possible charset conversion)
About to export specified tables via Conventional Path ...
. . exporting table EMP 4 rows exported
2>exp scott/tiger tables=emp query=\'where job=\'SALESMAN\'\'
LRM-00112: multiple values not allowed for parameter 'query'
EXP-00019: failed to process parameters, type 'EXP HELP=Y' for help
EXP-00000: Export terminated unsuccessfully
즉.. 정리를 하자면
command line에서 query 내에 '," 을사용하지 않는 다면 '나 " 으로 query option을 사용할수 있다
query=\'where deptno = 20\'
query=\"where deptno = 20\"
query=\'where deptno \< 2\'
(이 경우 single 이나 double quotes 을 둘다 사용할수 있다.)
parfile을 사용하는 경우에는 다음과 같이 단순하게 사용이 가능하다.
query='where deptno = 20'
query="where deptno = 20"
query='where deptno < 20'
WINDOWS NT / 2000 와 NETWARE syntax:
다음의 자료를 참조바란다.
Example:
EXP demo/demo tables=emp file=exp1.dmp query="""where deptno>30"""
double quotes(") 를 둘러 싸는 경우에는 space 가있으면 안된다.
parfile의 사용은 다음과 같이 하시면 됩니다.
file=exp66.dmp
query="where deptno > 20"
tables=(emp)
log=log66.txt
userid=scott/tiger
Explanation
Windows NT or Win2000의 경우 command line에서는 3 double quotes 이 필요하고
'PARFILE 을 사용하는 경우에는 double quotes(") 한번만 필요함
Reference Documents
Oracle8i Utilities guide
Note:91864.1

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