How to Connect Oracle Database 10g Express Edition ?

From example
http://www.oracle.com/technology/obe/hol08/dotnet/getstarted-c/getstarted_c_otn.htm
using Oracle.DataAccess.Client; // ODP.NET Oracle managed provider
using Oracle.DataAccess.Types;
string oradb = "Data Source=ORCL;User Id=hr;Password=hr;";
OracleConnection conn = new OracleConnection(oradb); // C#
conn.Open(); <== Connect Error
Error Message "ORA-12154: TNS:could not resolve the connect identifier specified"
I used
Visual Studio 2005
Oracle Database 10g Express Edition
setup "Oracle Developer Tools for Visual Studio .NET with ODAC 10.2.0.2.21"
Best Regards,
Edited by: user1949694 on 8 ก.ย. 2552, 9:20 น.

I search "tnsnames.ora" in my computer. I found 3 file
1. C:\oraclexe\app\product\10.2.0\server\hs\admin\tnsnames.ora
2. C:\oraclexe\app\product\10.2.0\server\NETWORK\ADMIN\tnsnames
3. C"\oraclexe\app/product\10.2.0\server\NETWORK\ADMIN\SAMPLE\tnsnames
How to entry in your tnsnames.ora file File1, File2, File3
How to called "ORCL"?
Please Help Me Step by Step
Thank You.
: )

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Is it straight forward - are there some scripts I can run?
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Solved
refer to: http://www.oracle.com/technology/software/products/database/xe/files/install.102/b25144/toc.htm#CIHDDHJD
Message was edited by:
Tony F.
Message was edited by:
Tony F.

I search "tnsnames.ora" in my computer. I found 3 file
1. C:\oraclexe\app\product\10.2.0\server\hs\admin\tnsnames.ora
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: )

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Hi, i was try that solution, but have some problem.
1) I have stopped other database (Oracle 8i, OracleService + Listener), none Oracle service was running.
2) I was install Oracle XE Univ.
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Hello guys,
Im running Windows XP SP2.
Ive just installed Oracle SQL Developer and Oracle Database 10g Express Edition.
Im trying to connect via SQL Developer with:
hr/hr (yes, ive unlocked this user)
localhost:1521
sid:orcl
but then it says:
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i guess its smth wrong with my SID.
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The default SID for Oracle Database 10g Express Edition is XE.

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G'Day Apex gurus,
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with not problems
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declare
*+
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ORA-06512: at "SYS.XMLTYPE", line 287
ORA-06512: at line 15
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Elapsed: 00:00:00.17
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I tried to continue by following the steps document
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when I type the credentials
system
system
systempassword
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admin
adminpassword
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Kind regards
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My database version is 10.2.0.1.0 Oracle express.
Operating system is Windows Vista.
I started installing using the following commands.
@ C:\temp\apex\apexins.sql
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SQL*Plus: Release 10.2.0.1.0 - Production on Fri Nov 27 18:13:43 2009
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect system/sairam as sysdba;
Connected.
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Enter a value below for the password for the Application Express ADMIN user.
Enter a password for the ADMIN user []
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...changing password for ADMIN
wwv_flow_security.g_security_group_id := 10;
ERROR at line 3:
ORA-06550: line 3, column 5:
PLS-00201: identifier 'WWV_FLOW_SECURITY.G_SECURITY_GROUP_ID' must be declared
ORA-06550: line 3, column 5:
PL/SQL: Statement ignored
ORA-06550: line 4, column 5:
PLS-00201: identifier 'WWV_FLOW_SECURITY.G_USER' must be declared
ORA-06550: line 4, column 5:
PL/SQL: Statement ignored
ORA-06550: line 5, column 5:
PLS-00201: identifier 'WWV_FLOW_SECURITY.G_IMPORT_IN_PROGRESS' must be declared
ORA-06550: line 5, column 5:
PL/SQL: Statement ignored
ORA-06550: line 8, column 23:
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ORA-06550: line 7, column 15:
PL/SQL: SQL Statement ignored
ORA-06550: line 13, column 32:
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ORA-06550: line 12, column 9:
PL/SQL: Statement ignored
ORA-06550: line 19, column 5:
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ORA-06550: line 19, column 5:
PL/SQL: Statement ignored
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if wwv_flow_utilities.db_version_is_at_least('11') then
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ORA-06550: line 32, column 25:
PLS-00302: component 'DB_VERSION_IS_AT_LEAST' must be declared
ORA-06550: line 32, column 3:
PL/SQL: Statement ignored
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ORA-06550: line 16, column 25:
PLS-00302: component 'DB_VERSION_IS_AT_LEAST' must be declared
ORA-06550: line 16, column 3:
PL/SQL: Statement ignored
Commit complete.
timing for: Load Images
Elapsed: 00:00:00.32
Directory dropped.
SQL>
Does this require XE 11 or anything else.
This will happen even if I supply as following(closing of sqlplus in the begining).
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Vendor code 12505
Edited by: 873444 on Jul 22, 2011 3:23 AM

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From Venu(INDIA)

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oracle ... /usr/.../tnslsnr ...
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$ sqlplus /nolog
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SQL*Plus: Release 10.2.0.1.0 - Production on Vie Oct 20 14:47:04 2006
Copyright (c) 1982, 2005, Oracle. All rights reserved.
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ERROR:
ORA-12514: TNS:el listener no conoce actualmente el servicio solicitado en el
descriptor de conexi¾n
Advertencia: íYa no estß conectado a ORACLE!
SQL>
The Services are UP.
The name of enviourment varible is oracle_sid but the value is?
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storage (initial 64k next 16k pctincrease 0)
tablespace purchases_feb2002,
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values less than (TO_DATE('01-04-2002', 'DD-MM-YYYY'))
pctfree 0 pctused 99
storage (initial 64k next 16k pctincrease 0)
tablespace purchasee_mar2002 );
Naturally, I also shall continue try find solution.
Winni.

Winni,
Partitioning is only available with Oracle Enterprise Edition.
Here is a list of features by edition:
http://www.oracle.com/database/product_editions.html
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Enterprise Manager Console is not included with XE - only with the other editions.
You can get most of the functionality through SQL, Application Express and SQL Developer.

How to Connect Oracle Database 10g Express Edition ?

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