Cannot log in to SQL*Plus after initial login

Hi all,
I have an irritating problem that I am hoping that you can help with. I installed Oracle 10g on RedHat Linux ES 3. Everything seems to be working fine as long as I do not log out my oracle user. If I leave the user logged in everything works as expected. Once I log out, when I log back in I cannot access SQL*Plus normally.
I enter: sqlplus my_user/my_password
I get this:
SQL*Plus: Release 10.2.0.1.0 - Production on Tue Sep 27 11:59:01 2005
Copyright (c) 1982, 2005, Oracle. All rights reserved.
ERROR:
ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
Linux Error: 22: Invalid argument
Additional information: 1
Additional information: 360457
But, if I enter it with the connection string: sqlplus my_user/my_password@ora1 then it works fine.
I get the same behavior through VNC. As long as I never log out of VNC but just close the session, logging in to SQL*Plus works as normal.
Any thoughts? My ORACLE_BASE, ORACLE_HOME, and ORACLE_SID seem to be correct.
Thanks,
Mike

Hi,
Kill the shared memory process and restart your database.
Regards,
Umair

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URGENT - cannot log in to SQL Plus on Oracle 8i

Hi, I have Oracle 8i (8.1.6.0.0) installed on windows 98.
I want to use the SQL Plus module, but I have trouble to login SQL plus, and I an get error message:
ORA-12560: TNS:Protocol adapter error
I supposed the default username and password as follows:
SYS/CHANGE_ON_INSTALL
SYSTEM/MANAGER
SCOTT/TIGER
Am I using the correct version or edition (which I also don't know which edition)? Does windows 98 supports SQL Plus?
I was told to set up a database by selecting database administration then follow by database configuration assistant (in order to use the SQL Plus, firstly a database have to set up). I'm not sure whether this is true? but inside the database administration I don't have the so call "database configuration assistant". Can someone please help me?
Thanks a lot in advance!

I hope you can help, I'm in the same boat as the others who cannot log on to the SQL* using Oracle Personal Edition 8
I'm running on 98, and everytime I try entering SYS as username & CHANGE_ON_INSTALL as password, or SYSTEM as username & MANAGER as password; I get:
ORA-01034: ORACLE not available
ORA-27101: Shared memory realm does not exist
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Cannot log in to SQL Plus on Oracle 8i

Hi,
I have Oracle 8i (8.1.6) Client installed on windows 200 professional. I donnot connect to any servers, and I want to use the SQL Plus module, but I have trouble to login SQL plus, and I an get error message:
ORA-12560: TNS:Protocole adapter error.
Would you please let me know what they are supposed to be: username, password and host string ?
Am I using the correct version, or I have to use the personnal edition, and if so I have Oracle 8i personnal edition, but it is not working with 2000, is there a patch file or do I have to download the 2000 version.
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The default logins for Oracle8i are:
SYS/CHANGE_ON_INSTALL
SYSTEM/MANAGER
SCOTT/TIGER
If you are connecting to the default database, don't enter anything in the Host String area. If you are connecting to a remote database, you will need to set up Oracle Net on your machine to connect to the remote database (tnsnames.ora file).
Do you have a database to connect to? You have installed the Oracle8i Client, which should be used to connect to remote databases (on other machines). If you don't have a remote database, you should install the full Oracle9i Server component, not just the Client.
The Oracle8i Personal Edition includes a cut-down version of the Server and the Client, and I think this is what you should be using if you don't have a remote database to connect to.
Personal Edition Version 8.1.6 is now desupported, but was certified against Windows 2000. Personal Edition Version 8.1.7 is still supported and is also certified against Windows 2000.
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Logging in on SQL Plus

I have yet been able to log in to SQL Plus. I just installed 8i Personal. I created a DB called "SCOTTSDB". After creating it, I wanted to login to SQL Plus. I tried user:system password:manager, user:internal password:oracle, and user:sys password:change_on_install. I just started an Oracle class at the university and wanted to run it at home for more practice. The login that I use at school is user:system password:manager. The host string is the name of the database right? For instance the name of the database that I created is like I said earlier "SCOTTSDB". Is that what I put in the host field? Any help is greatly appreciated. Thank you. scott

Hi I want to know, if Oracle 8i server can be installed in Win
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connect to it from Oracle client. It is giving error ORA-
12541:TNS: no listener . How to start a listener in Win 98? Is
it possible or Oracle 8i server has to be installed in NT/
2000 ? I want to use the client and server in a single machine,
thats why I do not want to unistall my OS. Can u suggest
anything?
Thanks and regards,
-surajit

Logging in to SQL Plus as DBUSER

I can log in to SQL Plus as username scott, password tiger. But I need to login as username DBUSER, password oracle. How can I do this?

In the same way as you did with username scott.
Or maybe there is no user DBUSER in your database.
check with...(as DBA)
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Can't connect to SQL Plus after installation...

Windows XP (Admin account)
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STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Beta
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Uptime 0 days 0 hr. 5 min. 22 sec
Trace Level off
Security ON: Local OS Authentication
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Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", status UNKNOWN, has 3 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
when I try to connect with SQL PLUS
SQL*Plus: Release 10.2.0.1.0 - Beta on Thu Nov 17 23:44:45 2005
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect / as sysdba
ERROR:
ORA-12560: TNS:protocol adapter error
I do have the entry in TNSNAMES.ORA
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = VANDERBI-M8R870)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
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The TNS-12154 (ORA-12154) error appears when SQL*Net cannot find the alias specified for a connection in the TNSNAMES.ORA file or other naming adapter.
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set feedback on
set define off
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Oracle10g - getting error when tried to log in using SQL plus

I have installed Oracle Database 10g with following settings
A) In Select Installation Method with basic installation
1) Global Database Name: orcl
2) Database Password: srinu
B) In Database Configuration Assistant shows following information
Global Database Name: orcl
System Identifier(SID):orcl
c) Password management
User Name SYS and SYSTEM shows accounts are not locked and password shows empty
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I have all the screen shots of the above settings
I will appreciate any help

Please find the commands and respective results below
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ALLUSERSPROFILE=D:\Documents and Settings\All Users
APPDATA=D:\Documents and Settings\Administrator\Application Data
CLIENTNAME=Console
CommonProgramFiles=D:\Program Files\Common Files
COMPUTERNAME=SRINU
ComSpec=D:\WINDOWS.0\system32\cmd.exe
FP_NO_HOST_CHECK=NO
HOMEDRIVE=D:
HOMEPATH=\Documents and Settings\Administrator
LOGONSERVER=\\SRINU
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OS=Windows_NT
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============================
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Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
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Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Produ
ction
Start Date 15-MAY-2010 23:44:31
Uptime 0 days 3 hr. 24 min. 25 sec
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Security ON: Local OS Authentication
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ra
Listener Log File D:\oracle\product\10.2.0\db_2\network\log\listener.log
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(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
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========================================
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Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
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LOCAL SERVER
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Handler(s):
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Instance "orcl", status READY, has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 current:0 max:1002 state:ready
DISPATCHER <machine: SRINU, pid: 3740>
(ADDRESS=(PROTOCOL=tcp)(HOST=srinu)(PORT=1092))
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Handler(s):
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Thanks,
Srinivas

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Cannot log in to SQL*Plus after initial login

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