RE: Oracle Performance
- From: "Huascar Espinoza" <hespinoza@xxxxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 11 Mar 2004 09:35:18 -0400
To realize the test, we have the basic following structure (similar on Oracle
9i and SQL Server 7.0):
* Table "SC_FACTURACION" have the following indexes:
* COD_IMPORTACION
* NRO_FACTURACION
* COD_FACTURA_ESTIMADA
* COD_FACTURA_REFACTURADA
* COD_MOTIVO_ESTIMACION
* COD_NIVEL_CALIDAD.
* Table "GE_HISTORICO_IMPORTACION" has 30 registers.
* Table "SC_FACTURACION" has 1,885,618 registers.
On 'SC_FACTURACION' we execute the following SQL sentences:
1. SELECT COUNT(NRO_FACTURACION) FROM SC_FACTURACION WHERE COD_IMPORTACION
= '14' AND COD_NIVEL_CALIDAD = '1'
2. SELECT MAX(NRO_FACTURACION) FROM SC_FACTURACION WHERE COD_IMPORTACION =
'14' AND COD_NIVEL_CALIDAD = '1'
3. SELECT MIN(NRO_FACTURACION) FROM SC_FACTURACION WHERE COD_IMPORTACION =
'14' AND COD_NIVEL_CALIDAD = '1'
The results are:
Sentence
Performance ORACLE 9i
Performance MS SQL Server 7.0
1
2 minutes
20 secs.
2
2 minutes
1 sec.
3
50 secs.
1 secs.
The servers are the followins features:
ORACLE 9i Server
Processor
Intel Pentium IV - 2.4 GHz
RAM Memory
512 MB
S SQL Server 7.0 Server
Processor
Intel Celeron 2.4 GHz
RAM Memory
380 MB
Please let me know, why the performance of Oracle is so low.
Thank you!
Huáscar Espinoza
-----Mensaje original-----
De: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] En
nombre de DENNIS WILLIAMS
Enviado el: Jueves 11 de Marzo de 2004 9:16
Para: 'oracle-l@xxxxxxxxxxxxx'
Asunto: RE: Oracle Performance
Huascar
Normal? No. In order to help diagnose your situation, please post more
details. Like your query, the sizes of your tables, etc. Have you analyzed
the tables in Oracle?
Dennis Williams
DBA
Lifetouch, Inc.
dwilliams@xxxxxxxxxxxxx
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]On
Behalf Of Huascar Espinoza
Sent: Thursday, March 11, 2004 7:04 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: Oracle Performance
¿Is it normal that a SQL sentence: MAX or MIN, execute over 1.5 minutes on
Oracle 9i, and in 1 sec. on SQL Server 7.0 (2 millions of registers), using
equals data structures and servers? ¿Why occur this situation?
Thank you,
Huascar Espinoza
----------------------------------------------------------------
Please see the official ORACLE-L FAQ: http://www.orafaq.com
----------------------------------------------------------------
To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx
put 'unsubscribe' in the subject line.
--
Archives are at //www.freelists.org/archives/oracle-l/
FAQ is at //www.freelists.org/help/fom-serve/cache/1.html
-----------------------------------------------------------------
Other related posts:
