SQL performance slow -- oracle 10g to oracle 11g

Hi,
We are have two development server, here we can call server10 and server11.
Server’s having same hardware and OS, but different oracle version, server 10 and server 11 having oracle 10g and oracle 11g respectively.
Problem, when you run sql query in oracle 11g it’s very slow compare to oracle 10g server.
Here I have checked
1) sga size – comparatively 11g size is big
2) no full table scan
OS – SUN
DB: 11.1.0.7.0, 10.2.0.4.0

mmee wrote:
Hi,
We are have two development server, here we can call server10 and server11.
Server’s having same hardware and OS, but different oracle version, server 10 and server 11 having oracle 10g and oracle 11g respectively.
Problem, when you run sql query in oracle 11g it’s very slow compare to oracle 10g server.
Here I have checked
1) sga size – comparatively 11g size is big
2) no full table scan
OS – SUN
DB: 11.1.0.7.0, 10.2.0.4.0If the query is running slow, the sga size should not be the first thing to check. PLease post the execution plans of the queries from both the servers. Please try to post the tkprof output of the trace of both. The reason for this that explain plan may lie to us about what has happened but trace would be the real picture only.
HTH
Aman....
PS: Don't forget to use the code tag and using the Preview tab to see how the code looks. A better formatted post would most likely get better attention and response.

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Hi all,
 
I am trying to connect Oracle 10g client (installed on WinXP) to Oracle 11g database (installed on WinXP). The connection failes with the error No Listener returned.
 
Below are the details.
 
On the database side (ip: 217.164.80.21 hostname:winxp ): 
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C:\>lsnrctl
LSNRCTL for 32-bit Windows: Version 11.1.0.6.0 - Production on 08-FEB-2008 09:42
:17
Copyright (c) 1991, 2007, Oracle. All rights reserved.
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STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 11.1.0.6.0 - Produ
ction
Start Date 08-FEB-2008 09:30:57
Uptime 0 days 0 hr. 11 min. 24 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File C:\oracle\oradb11g\network\admin\listener.ora
Listener Log File c:\oracle\diag\tnslsnr\winxp\listener\alert\log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=winxp)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
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Instance "ora11g", status READY, has 1 handler(s) for this service...
Service "ora11g_XPT" has 1 instance(s).
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The command completed successfully
LSNRCTL> exit
C:\>type c:\oracle\oradb11g\NETWORK\ADMIN\tnsnames.ora
# tnsnames.ora Network Configuration File: C:\oracle\oradb11g\network\admin\tnsn
ames.ora
# Generated by Oracle configuration tools.
ORA11G =
(DESCRIPTION =
 (ADDRESS = (PROTOCOL = TCP)(HOST = winxp)(PORT = 1521))
 (CONNECT_DATA =
 (SERVER = DEDICATED)
 (SERVICE_NAME = ora11g)
C:\>sqlplus system/mypassword@ora11g
SQL*Plus: Release 11.1.0.6.0 - Production on Fri Feb 8 09:44:33 2008
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Pr
oduction
With the Partitioning, OLAP, Data Mining and Real Application Testing options 
On the client side, I got the following 
C:\oracle\OraClient10g\NETWORK\ADMIN>ping winxp
Pinging winxp [217.164.80.21] with 32 bytes of data:
Reply from 217.164.80.21: bytes=32 time=71ms TTL=63
Reply from 217.164.80.21: bytes=32 time=181ms TTL=63
Reply from 217.164.80.21: bytes=32 time=54ms TTL=63
Reply from 217.164.80.21: bytes=32 time=17ms TTL=63
Ping statistics for 217.164.80.21:
 Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
 Minimum = 17ms, Maximum = 181ms, Average = 80ms
C:\oracle\OraClient10g\NETWORK\ADMIN>type tnsnames.ora
# tnsnames.ora Network Configuration File: C:\oracle\OraClient10g\network\admin\
tnsnames.ora
# Generated by Oracle configuration tools.
ORA11G =
(DESCRIPTION =
 (ADDRESS_LIST =
 (ADDRESS = (PROTOCOL = TCP)(HOST = winxp)(PORT = 1521))
 (CONNECT_DATA =
 (SERVICE_NAME = ora11g)
C:\oracle\OraClient10g\NETWORK\ADMIN>tnsping ora11g
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 08-▌╚╤╟و
╤-2008 09:47:36
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oracle\OraClient10g\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = winxp)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = ora11g)))
TNS-12541: TNS:no listener
C:\oracle\OraClient10g\NETWORK\ADMIN>sqlplus system/mypassword@ora11g
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Feb 8 09:48:19 2008
Copyright (c) 1982, 2005, Oracle. All rights reserved.
ERROR:
ORA-12541: TNS:no listener 
The firewall is set to OFF in both the database and client hosts.
 
Thanks in advanced.

Here is what I got "user601690" 
C:\oracle\OraClient10g\NETWORK\ADMIN>tnsping 217.164.80.21 1521
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 08-▌╚╤╟و
╤-2008 10:05:25
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oracle\OraClient10g\network\admin\sqlnet.ora
Used EZCONNECT adapter to resolve the alias
Attempting to contact (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=217.164.80.21))(A
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TNS-12541: TNS:no listener
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tnsnames.ora
# Generated by Oracle configuration tools.
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 (ADDRESS = (PROTOCOL = TCP)(HOST = 217.164.80.21)(PORT = 1521))
 (CONNECT_DATA =
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C:\oracle\OraClient10g\NETWORK\ADMIN>tnsping ora11g
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 08-▌╚╤╟و
╤-2008 10:05:56
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oracle\OraClient10g\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = 217.164.80.21)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = ora11g)))
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