Cannot connect to database using SQL Developer

Ok. Here are the facts:
1) I can connect to the database using PL/SQL Developer.
2) I wanted to try SQL Developer and I am unable to connect to the same database with SQL Developer. I provide username and password and select "network alias" and click test and I get "Network adaptor could not be established"
3) TNS names.ora file resides on a mapped drive which clearly is accessible by PL/SQL developer but not by SQL developer.
What am i missing?
Thanks a lot

If you can select a network alias, then sqldeveloper has found your tnsnames and the problem lies elsewhere.
Is the network drive specified by a UNC? SQLDeveloper doesn't work well with unc names.

Similar Messages

Issue in connection with database using SQL Developer.

Hi,
I am facing a problem in connecting to a remote oracle database, below are the configuration setting which i am trying to use in sql developer to make the connection
TNS Configuration Details (SUDHIR)
SUDHIR=
(DESCRIPTION=
(ADDRESS=
(PROTOCOL=TCP)
(HOST=52.12.xxx.xxx)
(PORT=1526)
(CONNECT_DATA=
(SERVICE_NAME=sudhir)
User : system
Password : xxxxxxxxxxx
Database : sudhir
Connect as : Normal
I got the above credential details from Onsite team I need to connect this in my local sytem SQL Developer I am proving the connection as below
Hostname : 52.12.xxx.xxx
Port : 1526
Service Name : sudhir
Username : xxxxxxxxxxxxxx
password : xxxxxxxxxxxxx
I get following error when say test connection in sql developer.
"The Network Adapter could not establish the connection."
Please suggest me using the above details how to make the connection success. Please let me know.
Thanks
Sudhir
Edited by: BluShadow on 30-Mar-2012 11:56
data anonymised by moderator

(o_0)
Hopefully for you, the machine is not reachable from internet !
Your giving online everything needed to log in as system ! that is quite dangerous. I guess the "Onsite team" would be pretty mad discovering that.
You should edit your previous post before too much people get to it.
Regarding your problem, I guess you can't get to the machine itself (maybe in a different network).
Can you try to ping it from your computer ?ping 51.17.130.121
This is a made-up IP, you'll have to replace with yours

Cannot connect to Database in SQL Developer - TIMEZONE errors

Cannot connect to any database get the following errors.
Status : Failure -Test failed: ORA-00604: error occurred at recursive SQL level 1
ORA-01882: timezone region not found
Tried change NLS settings to America (currently South Africa) but to no avail.
My system info:
About
Oracle SQL Developer 3.2.20.09
Version 3.2.20.09
Build MAIN-09.87
Copyright © 2005, 2012 Oracle. All Rights Reserved.
IDE Version: 11.1.1.4.37.59.48
Product ID: oracle.sqldeveloper
Product Version: 11.2.0.09.87
Version
Component     Version
=========     =======
Java(TM) Platform     1.6.0_38
Oracle IDE     3.2.20.09.87
Versioning Support     3.2.20.09.87
Running on Windows 7 with a 64-bit oracle client.

I managed to find the solution in previous thread
Please see my error message.

Cannot connect to database using SQL*Plus

Hi, I have Oracle 10g XE installed in my labtop and I cannot connect using SQL*Plus.
I can connect using the broser User Interface though, which I was able to do after doing the following procedure to change the password of the sys account:
-     open a command prompt
-     - type sqlplus
-     On the “Enter user-name” line, type /as sysdba
-     On the SQL> prompt, type alter user sys identified by NewPassword;
But the thing is that even though I am able to connect using sys/NewPassword from my browser UI, I dont get the same result when doing it using the SQL prompt.
What I am trying to do is this:
SQL> connect sys/NewPassword
Then I get first a warming saying that I need to use either sysdba or sysoper to connect to the system account, but neither of those work.
Can anyone advice me on this matter?
Thanks in advance

Thanks for that.
I run the command to list the usernames on the database and I got SYS and SYSTEM in the list. But again, when I try to use SYS with a password that I know is working because I can access it through the browser UI, it doesnt work. It seems like this sys is different to the sys I used in the UI.
I dont know if I am explaining myself correclty... In the Browser UI I use sys, and a password and I get connected to the sys account. However, if I try to use the same sys.password combination from my sqlplus prompt, I get error messages
Does this make sense at all?

How to start or shut down database using sql developer in windows

Dear Sir/Madam,
how we start or shut down database using sql developer in windows
we are using oracle 11g release2, unix, java & oracle oracle weblogic administration
Thanks & Regards
Manish Kumar
Datbase Team
TCS Ltd.

HI, Welcome to OTN form,
SHUTDOWN is not a SQL statement but a SQL*Plus command . You cannot use SHUTDOWN in PL/SQL.
Check following link:
http://docs.oracle.com/cd/E11882_01/server.112/e16604/ch_twelve042.htm#i2699551
More Information please check OTN discussion: https://forums.oracle.com/thread/2349159
Thank you

Linux non-oracle user cannot connect to database using TNS

LS,
I've installed Oracle 11gR2 on a linux box (name="ilmserver") running CentOS 5.4 (based on RHEL).
Created user "oracle" and groups "oinstall" and "dba".
Installation under user "oracle" went fine, and logged in as "oracle" user I can - naturally - access the database easily (via SQL+, or using SQL Developer it works via Basic, TNS, and Advanced (=jdbc)).
I have a second user on the linux box called "informatica", on which I have installed Informatica ILM 5.3.2, which uses the Oracle database as its repository.
The "informatica" user has been granted the same groups as the "oracle" user, i.e. "oinstall" and "dba".
I have severe problems accessing the Oracle database as the "informatica" user.
Using SQL Developer I can access the database using the "Basic" method, but not TNS.
But guess what: for ILM to work to its fullest extent I need to implement an environment variable called TNS_ADMIN.
I have implemented it, it sits in bash_profile and as such works fine:
+[informatica@ilmserver ~]$ echo $TNS_ADMIN+
+/home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin+
But as for being able to access it:
+[informatica@ilmserver ~]$ cat $TNS_ADMIN/tnsnames.ora+
cat: /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora: Permission denied
Somehow I thought that granting "oinstall" group to "informatica" user would take care of this. Obviously it doesn't. I also granted "dba" group to "informatica", to no avail apparently.
This is then - I assume - also the reason that when I want to connect using TNS from within SQL Developer, the dropdown list is empty (because it's not able to read TNSNAMES.ORA).
Does anyone know how to resolve this issue?
Thanks heaps!
Cheers, Patrick

Just ran all+ commands for oracle user:
*[oracle@ilmserver ~]$ id*
uid=502(oracle) gid=504(oinstall) groups=503(dba),504(oinstall),505(asmdba),506(asmadmin) context=user_u:system_r:unconfined_t
*[oracle@ilmserver ~]$ env | sort*
COLORTERM=gnome-terminal
CVS_RSH=ssh
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-m8BEsoxTeM,guid=7c9a73a7390af7742e606e004e571934
DESKTOP_SESSION=default
DESKTOP_STARTUP_ID=
DISPLAY=:0.0
G_BROKEN_FILENAMES=1
GDMSESSION=default
GDM_XSERVER_LOCATION=local
GNOME_DESKTOP_SESSION_ID=Default
GNOME_KEYRING_SOCKET=/tmp/keyring-TQlAPU/socket
GTK_RC_FILES=/etc/gtk/gtkrc:/home/oracle/.gtkrc-1.2-gnome2
HISTSIZE=1000
HOME=/home/oracle
HOSTNAME=ilmserver
INPUTRC=/etc/inputrc
JAVA_HOME=/usr/java/jdk1.7.0
LANG=en_US.UTF-8
LESSOPEN=|/usr/bin/lesspipe.sh %s
LOGNAME=oracle
LS_COLORS=no=00:fi=00:di=00;34:ln=00;36:pi=40;33:so=00;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=00;32:*.cmd=00;32:*.exe=00;32:*.com=00;32:*.btm=00;32:*.bat=00;32:*.sh=00;32:*.csh=00;32:*.tar=00;31:*.tgz=00;31:*.arj=00;31:*.taz=00;31:*.lzh=00;31:*.zip=00;31:*.z=00;31:*.Z=00;31:*.gz=00;31:*.bz2=00;31:*.bz=00;31:*.tz=00;31:*.rpm=00;31:*.cpio=00;31:*.jpg=00;35:*.gif=00;35:*.bmp=00;35:*.xbm=00;35:*.xpm=00;35:*.png=00;35:*.tif=00;35:
MAIL=/var/spool/mail/oracle
ORACLE_BASE=/home/oracle/app/oracle
ORACLE_HOME=/home/oracle/app/oracle/product/11.2.0/dbhome_1
ORACLE_HOSTNAME=ilmserver
ORACLE_SID=orcl
PATH=/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/oracle/bin:/usr/java/jdk1.7.0/bin:/usr/sbin:/sbin:/home/oracle/app/oracle/product/11.2.0/dbhome_1/bin
PWD=/home/oracle
SESSION_MANAGER=local/ilmserver:/tmp/.ICE-unix/14477
SHELL=/bin/bash
SHLVL=2
SSH_AGENT_PID=14513
SSH_ASKPASS=/usr/libexec/openssh/gnome-ssh-askpass
SSH_AUTH_SOCK=/tmp/ssh-INwup14477/agent.14477
TERM=xterm
TNS_ADMIN=/home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin
USERNAME=oracle
USER=oracle
_=/usr/bin/env
WINDOWID=24117329
XAUTHORITY=/tmp/.gdm9ITN0V
XMODIFIERS=@im=none
*[oracle@ilmserver ~]$ ls -l /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora*
-rw-r----- 1 oracle oinstall 879 Aug 24 21:39 /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora
*[oracle@ilmserver ~]$ ls -ld /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/*
drwxr-xr-x 3 oracle oinstall 4096 Aug 24 21:39 /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/
*[oracle@ilmserver ~]$ ls -ld /home/oracle/app/oracle/product/11.2.0/dbhome_1/*
drwxr-xr-x 74 oracle oinstall 4096 Aug 23 19:00 /home/oracle/app/oracle/product/11.2.0/dbhome_1/
*[oracle@ilmserver ~]$ ls -ld /home/oracle/app/oracle/product/11.2.0/*
drwxr-xr-x 3 oracle oinstall 4096 Aug 23 18:21 /home/oracle/app/oracle/product/11.2.0/
[*oracle@ilmserver ~]$ ls -ld /home/oracle/app/oracle/product/*
drwxr-xr-x 3 oracle oinstall 4096 Aug 23 18:21 /home/oracle/app/oracle/product/
*[oracle@ilmserver ~]$ ls -ld /home/oracle/app/oracle/*
drwxr-xr-x 10 oracle oinstall 4096 Aug 24 17:29 /home/oracle/app/oracle/
*[oracle@ilmserver ~]$ ls -ld /home/oracle/app/*
drwxr-xr-x 4 oracle oinstall 4096 Aug 23 18:21 /home/oracle/app/
*[oracle@ilmserver ~]$ ls -ld /home/oracle/*
drwx------ 22 oracle oinstall 4096 Aug 25 20:55 /home/oracle/
Naturally the "oracle" user has full access to its own directories.
A thought just occurred to me. I assume that theoretically it's possible to grant read privilige to informatica user on all these directories... would that do the trick?
But even if so, makes me wonder whether that is "best practice".
Also, I cannot imagine I'm the first person to encounter this scenario, and therefore there must be some standard approach to enable this.
Any suggestions/thoughts?
As for the TNSNAMES.ORA suggestion, I guess that is possible. Makes administration of TNSNAMES a bit more cumbersome though, as in, 2 files to maintain... risk of getting out of sync when making 'quick and dirty' changes without thinking things through too much (which shouldn't happen... but sometimes does anyway).
I'd prefer a solution where "informatica" has genuine access to TNSNAMES.ORA.
Thanks, Patrick
ps the bold bits with env.var LS_COLORS are unintentional, but don't know how to turn that off

Unable to establish connection to oracle database using sql developer

hi guys,
i tried to connect to the oracle database using the sql developer, but it fails. it replies the following message:
Status: Failure -Test failed: Io exception: The Network Adapter could not establish the connection
what should i do? any help

Please provide a little more information:
1) SQLDeveloper version.
2) Database Version.
3) Database location (same machine or on the network).
4) Connection method (basic,TNS).
5) Connection type (Thin,Thick/OCI).
Usually the first thing to check is if you have correctly entered the right information for your database connection, then if everything seems to be OK the database itself should be checked for potential problems.

Cannot debug procedure in 11g database using SQL Developer

Hi,
We have recently migrated our database from 10.2.0.4 to 11.2.0.2. We were able to debug procedures using PL/SQL Developer earlier but after 11g migration we are not able to debug the same procedure in 11g database.
Is it that we require 11g PL/SQL developer with 11g client installed to debug?

11g has a new privilege required to debug stored procedures, DEBUG CONNECT SESSION.
Does your user have this priv?
No client required to debug, but if you ARE using a client via OCI THICK preference, be sure that the client version matches the server version.

Cannot connect to database using Oracle Forms 10g

hi,
I had installed Oracle 10g database and Oracle Forms 10g on Windows Vista Home Basic. However, I was unable to connect to
the database in Oracle Form using scott/scott for database "orcl", with the following error message:
ORA-00604: error occured at recursive SQL level 1
ORA-01009: missing mandatory parameter
However, I could access to the database using this set of username and password. Am I missing something? Thanks.

Hi,
After a successful installation of forms 10g in vista, I'm about to run OPatch Universal Installer for the patch 7047034
in order to fix the form bugs. However, I cannot run the command "opatch apply C:\oracle_form\Patch26_Rel_10105\7047034"
with the error "The Oracle Home c:\devsuitehome_1 is not registered with the Central Inventory.". Then I try to create a
oraInst.loc file, but not much change still. The situation is that oracle 10g is installed before oracle developer suite
10g, and when I try to set oracle_home to oracle 10g's path ("C:\oracle\product\10.2.0\db_1") and run "opatch lsinventory",
it returns the correct result; when oracle developer suite 10g's path ("c:\devsuitehome_1") is set as the oracle_home,
the same command would return a different result as "LsInventory: OPatch Exception while accessing O2O".
I've verified through Oracle Universal Installer that the Central Inventory has included both as oracle_home (oracle 10g
and oracle developer suite 10g). I'm very confused now, though it seems that the problem could be solved by registering the
Central Inventory with oraacle developer suite 10g's path. Thanks.

Cannot connect to apexlistener via SQL developer.

I cannot connect via SQL developer to my installed apexlistener (2.0.1) installed on Glassfish (3.1.2) webserver.
In the server.log from this domain i always see following error messages;
[#|2013-04-24T10:49:25.199+0200|SEVERE|glassfish3.1.2|null|_ThreadID=453;_ThreadName=Thread-2;|No pool found for: http://servername:8080/apex/oauth2/token|#]
[#|2013-04-24T10:49:25.199+0200|INFO|glassfish3.1.2|null|_ThreadID=453;_ThreadName=Thread-2;|No DB connection found for: /apex/oauth2/token|#]
[#|2013-04-24T10:49:25.206+0200|SEVERE|glassfish3.1.2|null|_ThreadID=453;_ThreadName=Thread-2;|The pool named: apex_al does not exist|#]
Help appreciated...
Regards,
Ton

Turned debug on in defaults.xml;
[#|2013-04-24T12:19:47.840+0200|SEVERE|glassfish3.1.2|null|_ThreadID=453;_ThreadName=Thread-2;|No pool found for: http://.......:8080/apex/oauth2/token|#]
[#|2013-04-24T12:19:47.840+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|Could not find any database pool to use for this request|#]
[#|2013-04-24T12:19:47.841+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|Applied database connection info|#]
[#|2013-04-24T12:19:47.841+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|Attempting to process with PL/SQL Gateway|#]
[#|2013-04-24T12:19:47.842+0200|INFO|glassfish3.1.2|null|_ThreadID=453;_ThreadName=Thread-2;|No DB connection found for: /apex/oauth2/token|#]
[#|2013-04-24T12:19:47.844+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|Not processed as PL/SQL Gateway request|#]
[#|2013-04-24T12:19:47.844+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|Attempting to process as a RESTful Service|#]
[#|2013-04-24T12:19:47.863+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|Default Database connection does not exist|#]
[#|2013-04-24T12:19:47.952+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|Choosing: oracle.dbtools.rt.oauth.TokenHandler as current candidate with score: Score [handle=null, score=0, scope=SecurityConfig [constraint=secure, realm=OAUTH_CLIENT, logonConfig=LogonConfig [logonForm=null, logonFailed=null]], originsAllowed=[], corsEnabled=true]|#]
[#|2013-04-24T12:19:47.954+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|Determining if request can be dispatched as a Tenanted RESTful Service|#]
[#|2013-04-24T12:19:47.954+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|Request path has one path segment, continuing processing|#]
[#|2013-04-24T12:19:47.955+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|No JDBC Principal established, cannot dispatch|#]
[#|2013-04-24T12:19:47.956+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|Chose oracle.dbtools.rt.oauth.TokenHandler as the final candidate with score: Score [handle=null, score=0, scope=SecurityConfig [constraint=secure, realm=OAUTH_CLIENT, logonConfig=LogonConfig [logonForm=null, logonFailed=null]], originsAllowed=[], corsEnabled=true] for: POST oauth2/token|#]
[#|2013-04-24T12:19:47.960+0200|SEVERE|glassfish3.1.2|null|_ThreadID=453;_ThreadName=Thread-2;|The pool named: apex_al does not exist|#]
[#|2013-04-24T12:19:47.965+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|oauth2/token authorized as: IsZv_-R511-vq79m880SQA..|#]
[#|2013-04-24T12:19:47.965+0200|INFO|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=453;_ThreadName=Thread-2;|must be accessed over https only|#]

I am not able to connect to database in sql developer.how to do?

I downloaded sqldeveloper 1.5.4.59.40. iam not able to establish connection to database. Can anyone tell me ?

Have you created a database (or have one you connect to)?
Have you created the Net Service connections for SQL Developer to use?
Does SQL Developer have access to this Net Serviice name?
Have you created the connections from SQL Developer?
Can you post an error message?
See
<br>
Oracle Database FAQs
</br>

Cannot connect to database using JDBC

Hello!
I am trying to connect to my local database using this script:
import java.sql.*;
public class test{
public static void main (String[] args){
try
    DriverManager.registerDriver (new oracle.jdbc.driver.OracleDriver());
    Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","scott","tiger");
    Statement StmtPersoane = conn.createStatement();
    ResultSet CrsPersoane =StmtPersoane.executeQuery("select p.* from personal p");
    int jMarca = 0;
    while(CrsPersoane.next()){
    jMarca = CrsPersoane.getInt("marca");
    System.out.println(jMarca);
    CrsPersoane.close();
    StmtPersoane.close();
    conn.close();
catch(SQLException e)
    e.printStackTrace();
}When compiling i am getting this error: Error(7,58): cannot access class oracle.jdbc.driver.OracleDriver; file oracle\jdbc\driver\OracleDriver.class not found
I have set a CLASSPATH enviroment variable with value : D:\oracle10g\product\10.1.0\Db_1\jdbc\lib\ojdbc14.jar
Please provide some hints. Thanks in advace !

Problem solved with the connection, but now i'm getting another error when i am trying to parse an error. Here is the code a little bit modified:
import java.sql.*;
import java.text.*;
import java.text.ParseException;
import java.util.*;
public class test{
public static void main (String[] args){
try
    DriverManager.registerDriver (new oracle.jdbc.driver.OracleDriver());
    Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","scott","tiger");
            Statement StmtPersoane;
            StmtPersoane = conn.createStatement();
            ResultSet CrsPersoane =StmtPersoane.executeQuery("select marca from personal");
            int jMarca;
            jMarca = 0;
java.util.Date dataJava = new java.text.SimpleDateFormat("dd/mm/yyyy").parse("04/10/2006");
java.sql.Date dataSql = new java.sql.Date(dataJava.getTime());
System.out.println("Data: "+dataSql);
    System.out.println("Angajatii sunt:");
            while(CrsPersoane.next()){
    jMarca = CrsPersoane.getInt("marca");
    System.out.println(jMarca);
    CrsPersoane.close();
    StmtPersoane.close();
    conn.close();
catch(SQLException e)
    e.printStackTrace();
}The error:
Error(24,81): unreported exception: java.text.ParseException; must be caught or declared to be thrown
Any ideas ?

Cannot connect to database using the Upgrade Simulation Tool

I have installed the Upgrade Simulation Tool on my system and when I try to run the tool my system works in the for awhile in the background and creates the _Simulation mdf and ldf files and a .bck file. After 3 or 4 minutes it gives me an error "Cannot connect to the database".
It looks to me like it is connecting to the database because it is creating the files in the SQL Data folder. I have tried to run it on several databases and get the same results.
Thank you, Jeff

Hi,
You may not have the ability to upgrade it directly.
He does have the ability.
When downloading Pl 42, it is cleary marked as "Upgrader", which means it can be used for upgrade (in this case simulation) from a lower version than 2007A
Patchlevel which are marked as "patch" are suitable only for updating the PL within the very same version of SAP Business One.
This tool should run under 2007 system I believe.
The Upgrade Simulation tool was designed in orderto test an upgrade, therefore it can run at a machine where 2005 version is installed. Technically speaking it creates a second SBO-common, which can be used only with the special designed (read only) client of the tool.
Jeff, you should check access rights of your SQL Data folder.Maybe grant user "Everyone" modifying rights to that folder. In addition you could try to detach a DB and move the related *.mdf and *.ldf to another folder where no access denied rights were applied.
If using MSSQL 2005 create via ODBC a Native Client connection to the Server, although you might just working locally only.
Regards
Mario

Cannot connect to Database after install Developer Suite

Help..
I installed Oracle Database and everything seems work properly. I can connect to the database. (system/oracle@orcl)
well, but after I install the developer suite, I can't connect to the database anymore.
I did check the services and both OracleOraDb10g_home1TNSListener and OracleServiceORCL are started.
I try to search help from google but I cannot solve the problem by myself. I also include two ora file below,
tnsnames.ora
=====
# tnsnames.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
====
listener.ora
===
# listener.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
====
everything seems should working properly but I still have problem cannot connect to the database. SQLPlus says "ORA-12154" and "ORA-12514"
please help me.. I need to finish my project within next 2 weeks or I have to study one more year. T_T

Hi ...
The Oracle Doc points out as actions in this type of error:
- If you are using local naming (TNSNAMES.ORA file):
- Make sure that "TNSNAMES" is listed as one of the values of the NAMES.DIRECTORY_PATH parameter in the Oracle Net profile (SQLNET.ORA)
- Verify that a TNSNAMES.ORA file exists and is in the proper directory and is accessible.
- Check that the net service name used as the connect identifier exists in the TNSNAMES.ORA file.
- Make sure there are no syntax errors anywhere in the TNSNAMES.ORA file. Look for unmatched parentheses or stray characters. Errors in a TNSNAMES.ORA file may make it unusable.
- If you are using directory naming:
- Verify that "LDAP" is listed as one of the values of the NAMES.DIRETORY_PATH parameter in the Oracle Net profile (SQLNET.ORA).
- Verify that the LDAP directory server is up and that it is accessible.
- Verify that the net service name or database name used as the connect identifier is configured in the directory.
- Verify that the default context being used is correct by specifying a fully qualified net service name or a full LDAP DN as the connect identifier
- If you are using easy connect naming:
- Verify that "EZCONNECT" is listed as one of the values of the NAMES.DIRETORY_PATH parameter in the Oracle Net profile (SQLNET.ORA).
- Make sure the host, port and service name specified are correct.
- Try enclosing the connect identifier in quote marks. See the Oracle Net Services Administrators Guide or the Oracle operating system specific guide for more information on naming.According to the above and my LISTENER settings in listener.ora file which is...
LISTENER =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = myhost)(PORT = 1521))
)there is one ')' missing closing parenthesis....
So , modify your LISTENER settings ... according to the below....The difference is the ')' in bold....
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
Can you connect now.....????
Regards,
Simon

Inserting and retrieving data from a al32UTF8 database USING SQL Developer

hi guys,
Before i post my questions , i think its better for me to provide you guys with my understandings first so that it easier to understand where/if i have gone wrong..
I am using Window XP and Oracle 10g
Non-unicode client - a client program that need to use the OS code page for mapping of the retrieved unicode data from the database as well as the support of displaying/inserting the characters from that code page to the database.
E.G sqlplusw.exe
Therefore, when using a non-unicode client
1) we have to set the OS code page (Control panel - regional and language setting - advance - language for non unicode program ) to the code page that contain the characters we are going to display/insert.
2) we will also have to set the NLS_LANG characterset to the character set of the code page we are going to insert so that when we do a insert (for e.g in thai ) , oracle will know, and auto conversion to UNICODE can take place. This is also true when we retrieve unicode data from the database so that conversion to the correct character set can take place.
INSERTING
THAI ---> conversion ----> UNICODE
RETRIEVING
THAI <---- conversion <---- UNICODE
I hope my basic understanding is correct up till this point.
Unicode client - a client program that supports the displaying/inserting of unicode characters without the need of setting the OS code page (Control panel - regional and language setting - advance - language for non unicode program )
E.G isqlplus http or SQL developer
However,
1) There is still a need to set the NLS_LANG so that correct conversion can take place between the client and the database.
For e.g, when retrieving if we set the NLS_LANG character set to ZHS16GBK (chinese) and the data store in unicode in database is E.G (THAI) , then the conversion would be wrong .
Since it is a unicode supported client, then the NLS_LANG character set should be set to UNICODE as well.
Here come my questions
*Important - please help if you are busy and have no other time to answer the rest of the questions
*Q1) If i were to use a unicode client, what should i set my NLS_LANG character set to ?
AMERICAN_AMERICA.UTF8 ?
*Q2) Where do i set the NLS_LANG character set information in SQL Developer, i know there is a metalink for setting NLS_LANG using isqlplus but i cant seems to google any result for SQL developer.
Q3) Is my basic understanding right until this point ? If not, please explain in a more generalised term as i am really not familiar with character sets, code page, unicode , glyphs and fonts..
Q4) If a unicode client does not need to refer to the OS code page (set in regional and language) , is there a UNICODE code page for the client to refer to , or is there any Window API available ?
Q5)
There is still a need to set the NLS_LANG so that correct conversion can take place between the client and the >>database.
For e.g, when retrieving if we set the NLS_LANG character set to ZHS16GBK (chinese) and the data store in >>unicode in database is E.G (THAI) , then the conversion would be wrong .am i right on this point for UNICODE supported client ?
Thanks for spending time to read my questions and i hope to hear advices from you guys soon.
Million thanks again for sharing.
Best Regards,
Noob but willing to learn

The requirement to always set NLS_LANG is not true for JDBC, which ignores NLS_LANG altogether. Java programs fetch text data into String variables, which use Unicode UTF-16 by design. JDBC sets character set conversion so that data is converted between UTF-16 and the database or national character set.
The requirement to set NLS_LANG is not generally true for OCI, either. The first call in an OCI problem can be OCIEnvNlsCreate(). This call has two parameters that allow the caller to define the character set to use for VARCHAR2/CHAR/LONG/CLOB/statement text and the character set to use for NVARCHAR2/NCHAR/NCLOB. Only if these character sets are specified as 0, NLS_LANG character set is used. Also, OCI programs can specify different character sets for each bind or define variable (i.e. input/output buffer). Note: OCI programs always use NLS_LANG to initialize the language and territory settings for the client program and the database session. Only the character set can be specified is OCIEnvNlsCreate().
OCIEnvNlsCreate() can specify the client character set as UTF-16 (in platform endianess). This is not possible with NLS_LANG.
Various interfaces building on OCI, such as Oracle ODBC and ODP .NET, explicitly initialize OCI with Unicode character set, and thus ignore the NLS_LANG character set as well.
Thnx,
Sergiusz

Cannot connect to database using SQL Developer

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