How Users Interact with Oracle Database Express Edition in a Network?

Please i just want to know how users can relate or access the Oracle DB xpress on a network. Coming from an oracle enterprise edition background i know when you install oracle on a network, isqlplus for example is centrally loaded meaning you dont need to install oracle on each machine in the network, so users can access the DB from their nodes. I am presently working in a big estate management firm and i want to create a structured database for them, they use excel to store records and want to introduce Oracle.

You can access XE remotely through the browser after following the instructions here:
http://download.oracle.com/docs/cd/B25329_01/doc/admin.102/b25107/network.htm#BHCBCFBA
If you are using APEX as the application, you'd need to do that. There may be other firewall consideration though (ie opening the relevant server ports).
[There's no isqlplus anymore, but there is a similar sql worksheet in the Apex development environment).
If you are just using the database as a data store behind, for example, a Java application, then connections will probably be through ODBC/JDBC/OCI and probably need some client installation too.

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Connect Problems with Oracle Database Express Edition 11g Release 2

Hello,
I am a student trying to install Oracle Database Express Edition 11g Release 2 and SQL Developer on my home system, Win7 64Bit, in order to practice some things I've learned from me DBA class and Developer classes.
Anyway, I have everything installed, but I am having difficulty connecting as SYS or SYSDBA in the 'Run SQL Command Line', I keep getting the ORA-01017: invalid username/password: logon denied.
However, If i select the 'Start Database' I get this:
C:\oraclexe\app\oracle\product\11.2.0\server\bin>
and I can type sqlplus / as sysdba and it starts up just fine and show user lists me as "SYS".
but if I go back to 'Run SQL Command Line' I still cannot connect as SYS or SYSDBA...I find this both confusing and frustrating. I don't know if I am in different instances or something like that, but I seem to be limited to connecting only as "SYSTEM". I need SYS because I want to practice creating datafiles, instances and things like that, but I seem to be lost.
Also, I am trying to create a new DB connection with SQL Developer and I can only us SYSTEM for my login which, if I understand correctly, will limit my privileges. Again When I try to sign in with SYS or SYSDBA I get error'd out. When I installed Ora11gDBExpress I was prompted in input a single password that was supposed to grant me access as SYS or SYSTEM, but I am limited to only SYSTEM for some reason.
So, I am looking for help/guidance as to what to do.
Thanks in advance for any and all help,
Warren

General rule of thumb, don't use sysdba unless you want to shut down the database, or grant a database user privileges on a sys object.
A SYSTEM connection is not "limiting", it has the DBA role which means a user with a system connection can do most anything needed, including select/update/delete/drop any user's objects as well as change parameters in the instance.
The system user can indeed add datafiles, tablespaces, etc. The instance and database should already be created as long as the installer completed all its chores correctly. For XE, per the license agreement only one instance can run on one host. If you want to try creating a database, it will require shutting down the XE instance and creating a new database service, creating the database, and installing the system catalog and any other optional components desired. Good practice indeed, but a bit advanced for the new user.
Do create users for schemas ... connect system; create user <username> identified by <password> and connect <username> for the schemas (a collection of objects) within the database. Grant the resource and create session privilege to <username> to allow the database user the ability to create tables, indexes, stored procedures, etc.
There is no "or" in a sys as sysdba connection, from 10g onwards a sys connection requires using the sysdba privilege. To enable a sysdba connection, add your host user to the ORA_DBA group on the host. To verify the OS users in the ORA_DBA group, this might work for win7, in a cmd box ...
$ net localgroup ora_dba
...If your OS user is in the ora_dba group the sys as sysdba password is not relevant, you can in fact type anything for a password. If you wish to connect with the sysdba privilege from a remote client, that is a bit different and requires knowing the password set in the instance password file. Which should be set the same as the system password defined in the installer, but you can change that by creating a new password file. Another slightly advanced topic.
In Windows IMHO its better to leave the listener and database set to Manual start (in the services applet, Start/Run/services.msc) and start the listener, then the database, when its needed. At least for an XE instance, as its intended for practice and learning RDBMS management.
Edited by: clcarter on Mar 2, 2012 6:19 PM
fix typos

Problem with Oracle database Express Edition (Linux)

I installed oracle-xe on my machine (ArchLinux x64), and all worked fine before a reboot. After it, I still can connnect to the db with sqlplus, but can't connect to apex (http://localhost:8080/apex/f?p=4950) and can't get a connection using ojdbc:
Exception in thread "main" java.sql.SQLRecoverableException: IO Error: The Network Adapter could not establish the connection.
I tried to reinstall the db several times, but the result was always the same: all is ok only before rebooting. I'm a newer with Oracle database and can't find a solution. Could you give me some tip about it?

The problem was solved by changing permissions for log directory :
sudo chmod -R 777 /usr/lib/oracle/product/11.2.0/xe/log

Installing SQLDeveloper with Oracle Database Express Edition 11g Release 2

Hello,
I have a problem with sqldeveloper in connecting to the database with the following message:
*"java.lang.unsatisfiedlinkerror oracle.jdbc.driver.t2cconnection.t2csetsessiontimezone"*
I can connect to the database via SQL / SQLPLUS. I cannot select from the dual table.
My machine is windows 7 - 64 -bit. I downloaded SQLDEVELOPER for 32-bit.
Thanks.
Jaffee

I downloaded the version without the JDK, because I already had Java on my machine. I will try with the JDK included.
New update: I download the version with the JDK. I recevied the same message. Do I need to delete the first version of Java?
Thanks.
Jaffee
Edited by: Jaffee2 on Jul 24, 2012 11:50 AM

Upgrade oracle database express edition

good morning
i've a question i'm working with oracle database express edition but now the memory is full and i want to upgrade it to oracle enterprise edition but i don't know the steps please can you help me in this
best regards

I've a question i'm working with oracle database express edition but now the memory is full and i want to upgrade it to oracle enterprise edition Hi,
Not to dissuade you from that, but that's quite a leap from XE to EE, are you sure that SE One or SE would not be a 'better option' for you?
Also, by 'memory is full', I assume you mean you've reached the 4Gb data limit?

Creating a Database with Oracle 10 Express Edition

Hello,
I had installed Oracle Database 10g Express Edition whith linux, fedora core 4.
I want to create a new database with Oracle 10g Express Edition. How can i do this?
I know that Orcale 10g express edition have only one Database which is installed by default sid 'XE', but my database must have another name.
Thanks.

Really you need to change database name ?
Oracle 10g Espress Edition and change ORACLE_SID

How to connect Java to oracle Database Express Edition?

Anyone can help me?
How to connect JAVA TO ORACLE DATABASE EXPRESS EDITION?

I suggest you to read this article:
http://wiki.oracle.com/page/JDBC
Regards,
Ricky

Oracle Database Express Edition SQL Developer

Hi all,
I did download the Oracle Database Express Edition from Oracle's website and am trying to create a new connection with the following info
Connection Name: myconnection
Username: ora21
Password: ora21
Hostname: localhost
Port: 1521
SID: orcl
Note: I even tried to use xe as the SID since it's a express edition but it keeps telling me test failed: ORA-01017: invalid/password; logon denied.
Could it be because it's an Express edition? Please advice as am a new DBA and am practising on my own

@Jim: thanks for the reply! I just created the user ora21 but when I try to creat the connection again it gives error ORA 01045 : user ORA21 lacks create session privilege; logon denied.

Oracle Database Express Edition used in a standalone database

I have been developing databases for years in Access. I have had alot of people want me to make databases for them. I do not want to make the databases in access and then have to worry about sending a database to a different state and then find out that the user has a different version of access installed and it is not working correctly.
Can I use Oracle database express edition to create a database with a front end that I can send to others and they can install it on their computer and run it? Or do they need to install the full version of Oracle Express? In other words is there like a Runtime version?

user13756579 wrote:
I saw that had to install twice last night, messed up my password. The one thing I am worried about is the database running all the time on the users computer, even tho they might not use the database for months at a time. These databases are small databases to keep the data of group members. ie. name, address, phone, personal information and maybe a scanned document or two.
I have looked at other database programs, but do not want to put out alot of money if I might only develop 3-5 small databases a year.You may develope your application in such manner, that it will start Oracle XE service and stop it on exit. Set the service to start manually. That's it.

Downloading Oracle Database Express Edition

Hi everyone. I just downloaded the freeware Oracle Database Express Edition without any apparent problems. However, when I attempt to go to the Express Edition Homepage, which is location http://127.0.0.1:8080/apex,
I get the message that my Internet Explorer cannot display the webpage. (It can, however, display other pages.) I cannot understand why this is the case since I successfully added Web site 127.0.0.1 in my Control Panel (as specified in the instructions.) Also, the instructions stated that HTTP port 8080 was the default port, unless my system said that this was not available (which it did not.) I also tried rebooting, which did not make a difference. Help!
Thanks,
Jason

Hi,
Use this forum to report problems with or suggestions for the download.oracle.com service or content.
Please post your question in the appropriate forum for a better/faster response.
Database - General
General Database Discussions
Thanks,
Hussein

Primavera CM compatibility with Oracle 11g Express Edition

We are trying to install Primavera CM 13.1 application (on windows 7 32 bit) with oracle 11g express edition (on CentOS 5.4 64 bit). Installation is completed without any warning but while trying to log on in the system with expadmin, it shows Internal Server Error. Through dbconfigcm utility we can connect the database but while running the CMAdminConfig utility, it throws java exception in command line "Unable to parse XML String" with java pop-up warning node has no children.
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Regards,
Sandip

Thanks Jim for the quick response. From the link, I understand that TT integration will be available with an extra cost. I presume it is only with EE and not XE, correct? Technically, there is no TT support with XE, Is that a fair statement?
Thanks

Localhost 127.0.0.1(oracle database express edition)

hi all,
i finished installing the oracle database express edition,checked the "launch the database homepage" , i still could not load the database homepage,the message i keep getting is "internet explorer cannot display the page" and i tried it on firefox i got the same message. the two browsers have the url :http://127.0.0.1:8080/apex.
kindly help me out with this.

please check the IP address .. looks like you IP is wrong
--Girish

Upgrade Oracle Database Express Edition to (10.2.0.4 OR 11g) Release

hello
I plan to install the SOA, but need more than the database version 10.2.0.4. How to upgrade Oracle Database Express Edition to (10.2.0.4 OR 11g) Release?Thank you!!

Hi,
I plan to install the SOA, but need more than the database version 10.2.0.4. How to upgrade Oracle Database Express Edition to (10.2.0.4 OR 11g) Release?Thank you!!My i know the current version of your database?
Refer:
*316889.1 -- Complete Checklist for Manual Upgrades to 10gR2*
*429825.1 -- Complete Checklist for Manual Upgrades to 11gR1*
*837570.1 -- Complete Checklist for Manual Upgrades to 11gR2*
thanks,
X A H E E R

Unable to start Oracle Database Express Edition (XE) on window 7 - 64 bit

I installed Oracle Database Express Edition (XE) on a WINDOWS 7 - 64 bit machine. I tried "Get Started" and http://localhost:8080/apex. It does not start/connect of anything. Please help.
Thanks.
Debbie

I received the following message from lsnrctl status
and sqlplus / as sysdba.
C:\>lsnrctl status
LSNRCTL for 32-bit Windows: Version 11.2.0.2.0 - Production on 20-JUL-2012 17:09
:16
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
32-bit Windows Error: 2: No such file or directory
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=MW777SXH4ITNY4.dir.svc.a
ccenture.com)(PORT=1521)))
TNS-12545: Connect failed because target host or object does not exist
TNS-12560: TNS:protocol adapter error
TNS-00515: Connect failed because target host or object does not exist
32-bit Windows Error: 1004: Unknown error
C:\>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.2.0 Production on Fri Jul 20 17:10:04 2012
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - Production
SQL> select sysdate from dual
2 /
SYSDATE
20-JUL-12
SQL>
Does this mean I am up and running? I selected from dual. I will continue to play with the DB.
If I download SQL Developer, should the version be for 32-bit or 64-bit for PC - Windows 7 - 64 - bit?
Thanks.
Edited by: 893328 on Jul 20, 2012 2:58 PM
Edited by: 893328 on Jul 20, 2012 2:58 PM

Is the Oracle Database Express Edition 11g Release 2 enough for preparing for the 1Z0-051 and 1Z0-144 Exams?

I am planning on getting certified as an OCA PL\SQL developer. I will be teaching myself and I have all the material needed to prepare.
Except, I don't have a database that I can solve exercises on and practice commands.
The two exams I will be taking are the :
1Z0-051 exam: Oracle Database 11g: SQL Fundamentals I
1Z0-144 exam: Oracle Database 11g: Program with PL/SQL
So is the Oracle Database Express Edition 11g Release 2 is enough ?
If it is not what other options do I have (I am running Windows 8.1) ?

Yes -- 11gXE should be sufficient for practicing the vast majority of the skills required for those two exams. I *think* that PARALLEL is not enabled in XE, so you could not test the functionality referred to in the "Use NOCOPY hint, PARALLEL ENABLE hint and DETERMINISTIC clause" topic of 1Z0-144. I don't consider that to be a significant problem, however. The material from the manual should suffice for the questions you'll see.
As for what other options you have, you could download and install VirtualBox (free from Oracle). You could then make a virtual machine on your Windows 8.1 machine and install Oracle Linux (free from Oracle). You could then download and install Oracle Enterprise for Linux and install it on your virtual machine (allowable under the licensing when used for learning purposes only). I have a similar setup on my Windows 7 laptop that I use when I absolutely have to test some feature that requires Oracle Enterprise. Mind you, when I have the VM running on my system... it is ssssslllllloooooowwwwww because of the memory requirements. I talk about using virtual machines as a certification aid in the following article:
There is virtually no excuse to lack hands-on experience - CertMag

How Users Interact with Oracle Database Express Edition in a Network?

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