Oracle is a relational DBMS (Database Management System) created by Oracle Corporation. It supports a large number of languages and application development frameworks. Its primary languages are SQL, PL/SQL and Java.

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Are there any disadvantages of using UTF8 in an oracle database?

We are installing ordering a configured oracle database and they are asking us what character encoding we would like to have. The application (in Java) is in English only but users are from different ...
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1answer
903 views

Oracle: Can Weblogic 11G run PL/SQL code like App Server 10G?

This is probably a silly question, but I'm not an oracle admin so I'm not sure. Our client currently runs a website written in PL/SQL and HTML on a Oracle 10G system. As everything is moving in the ...
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1answer
1k views

Rolling Upgrade of Oracle 11g from 32 bit to 64 bit?

I have an Oracle 11.1.0.7 database running on windows 32 bit. I would like to upgrade to 64 bit (same version of oracle) and would like to use a standby database for a rolling upgrade. Is this ...
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1answer
3k views

ORA-01041 error when duplicating database to new host

I'm using RHEL 5 with Oracle 11g and I'm testing data guard. I am trying to setup data guard by following this link: ...
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2answers
1k views

how does odbc driver work?

I have an application hosted on jboss. use jdbc driver of oracle to connect to an oracle 10.2g database. Can anyone guide as to what happens when a session is established. Just trying to understand ...
2
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1answer
3k views

ORA-12705: invalid or unknown NLS parameter value specified

I have a J2EE application hosted on JBoss on Linux. When I try to access the application, I see following error in the server.log file. ORA-12705: invalid or unknown NLS parameter value specified ...
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2answers
119 views

Correct directory for Oracle installation on Linux

What is the best directory to install Oracle on Linux box? /srv, /opt, /usr/local?
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1answer
2k views

Oracle temp file TEMP01.DBF taking up too much space

Can I delete this file or recreate it with a size limit? Thanks.
2
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1answer
7k views

Oracle XE 10g: missing file spfileXE.ora (Windows Server 2008 64 bit)

I'm having problems installing Oracle XE 10g on a Windows Server 2008 64 bit machine. After the installation the connection to the database administration page http://127.0.0.1:8080/apex fails. If ...
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1answer
2k views

How to Check Oracle Extent Free Space Available?

I need to add some indexes to a moderately large table and I'd like to know in advance if the tablespace has room to hold the index. (The extents are suppose to automatically increas in size, but the ...
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1answer
897 views

Weblogic - Adding websites

Is it possible to create a website in a domain pointing to a local directory? Or does everything deployed to Weblogic have to be WAR, EAR, RAR or JAR? I want a simple possibility to just FTP to a ...
2
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1answer
3k views

Installing SSL Support in Weblogic 10

I have some troubles installing my SSL Certificate into Weblogic 10, here are my configuration steps: Copied the .cert and .key to the server Executed the following: []# keytool -import -keystore ...
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3answers
170 views

Which platform has good job openings in Oracle 91 & 10g

I plan to do an Oracle course in Dream infotech. They are providing training in Oracle on Linux / Solaris. Which platform is best and has good job openings?
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2answers
4k views

Extremely High V_$SYSTEM_EVENT Wait Times on Oracle DB

I'm working on troubleshooting an oracle DB that's having some general performance problems. I ran the following query: SELECT event AS "Event|Name", total_waits "Total|Waits", ...
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1answer
162 views

PHP/Oracle Connectivity randomly “drops out”

Here's the current situation - I have two web servers (for now named A and B) and two database servers (named C and D). The web servers are quite old, and are running an early version of Apache 2 + ...
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3answers
342 views

Oracle DB Deadlocks

We have a situation where a db is "slowing down". DB operations that normally take a second or two are taking ten times as long. There appear to be a large number of locks in the DB when this is ...
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2answers
2k views

What linux filesystems does Oracle 10g support?

I am wondering if there is a supported (or recommended) list of filesystems that Oracle 10g supports. Specifically I wish to know if storing Oracle data on an XFS partition is a bad idea. I ask ...
2
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1answer
1k views

Oracle 10g on Snow Leopard?

I have found a couple of pages on how to get this configured on Leopard (link and link), and then apparently an upgrade to Snow Leopard does not seem to complicate matters much. However, I'm already ...
2
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2answers
907 views

How do I setup Red Hat Enterprise Cluster and oracle 9 to support failover?

I am trying to figure out how to use RHEL cluster to have automatic failover of an oracle 9 database from one physical machine to another. Ideally this solution would be fully hardware redundant in ...
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6answers
885 views

Oracle DB on VMWare?

Management have OK'd a migration of our main Oracle DBs to a virtual machine platform. Operations say they'll dedicate heavy-duty hardware and only run the DB VMs on it. I've heard that running DBs ...
0
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1answer
3k views

ORA-27101: shared memory realm does not exist

A couple mornings now my Oracle database has hit this error and not come up for an hour or so. Then it works fine for the rest of the day without needing any interaction. But this messes up my apps ...
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2answers
174 views

Oracle / windows hardware recommendation [closed]

I'm specifying a Windows server to run Oracle for (time based) performance tests of our application. Although the total data volume & number of users will be low, we would like the performance to ...
2
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2answers
2k views

Skip inserts for one table with oracle imp

I'm doing an oracle imp and in the dump there is a big table that I would like to only create but not to insert row into. Is this possible ? Exp was done on 10.2.0.4. I'm doing imp on XE ...
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3answers
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Oracle 11g server rename issue

So we set up an Oracle server out of production (11g on Server 2008 x64) and our plan was to just rename the server's hostname to move it into production. Well, the database itself is functioning but ...
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5answers
917 views

Should Oracle *online* redo logs be backed up?

Obviously archived redo logs are backed up as frequently as required, but does it make any sense to backup online redo logs? Is the online redo log an open and active file such that copying it in this ...
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4answers
17k views

ORA-12705: Cannot access NLS data files or invalid environment specified

I am getting this error while trying to create a connection pool, on my Oracle database, Oracle 10gR2. java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1 ORA-12705: Cannot ...
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2answers
464 views

Database run in archive log mode

I'm using Oracle 11g on RHEL 5. I've created one database with no archivelog. After doing offline migration from SQLSERVER to ORACLE, I've changed this database to run in archive log mode. My ...
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4answers
115 views

Is there service management software in existence that meets these needs?

I work in an IT dept. at a higher ed. institution. Because the department is small and the infrastructure simple, managing all the services we offer out to the school (like LDAP, AD, various DBMS', ...
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3answers
5k views

Oracle export failed: EXP-00006: internal inconsistency error

My call to Oracle's exp is failing with: EXP-00006: internal inconsistency error EXP-00000: Export terminated unsuccessfully The command I execute is C:\oracle\product\11.1.0\db_1\BIN\exp ...
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2answers
2k views

prevent ORA-28001?

Using Oracle 11g, is there a way to prevent my user's passwords from needing to be updated (ORA-28001)?
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7answers
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Oracle Vs SQL Server to handle around 6-7 Terabytes of data

I am looking for some valid points to choose between Oracle Vs SQL Server to handle around 5-6 Terabytes of data. This data will get accumulated over a period of 8 Months. Any data older then 8 months ...
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2answers
10k views

Disconnecting an Oracle Session from a Logon Trigger

I'm trying to construct an Oracle 11g logon trigger that restricts access for a specific user to a known list of applications. For example, user SCOTT can only connect with MYAPP.EXE. I believe I ...
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1answer
812 views

Create Oracle user to do backup job

For the security reason, I want to create the user and then assign the backup job to that user. This means that this user is not allowed to do anything else beside backing up the database. However, ...
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1answer
179 views

Oracle Database Security

I'm currently using RHEL 5 and Oracle 11g. I use DBCA to create Oracle database with all default options available. The problem is that when I create a new user on that database, this user can ...
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1answer
483 views

Oracle logical standby fails with ORA-01919

I have an Oracle logical standby database being managed via data guard. Just this morning the redo apply process began failing with an ORA-01919 error, indicating one of our application roles did not ...
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10answers
556 views

Should core system servers be able to connect to the internet for maintenance/support?

A couple of our servers have Oracle maintenance licenses. Our hardware vendor asked there was internet connection in the server room. Our policy is that all machines in that room is isolated from the ...
2
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1answer
335 views

OS Authentication

I'm currently using Oracle 11g on RHEL 5. I want to disable OS authentication administration on my database because of the security issue. When OS admin user login to OS, and they issue "sqlplus /", ...
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4answers
2k views

Infiniband for Oracle 11g RAC private interconnect?

We currently have a 2-node Oracle 11g RAC using 1GigE as the private interconnect. At peak update time, the traffic between nodes reaches 35 MByte/second, so we are still doing good in terms of ...
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1answer
573 views

Oracle: TRUNCATE sometimes takes ages

Usually, truncating a table takes 5-10 seconds. But when several people work on the same DB instance (but different tables), the operation can take more than an hour. How do I debug this?
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1answer
474 views

iSQLPlus not starting on Port 80

I am trying to change the port for iSQLPlus on my Oracle DB server, by making changes in the file http-web-site.xml. When I change the port to 80, in this file, the iSqlPlus doesn't start. I can ...
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5answers
3k views

SMON process in infinite loop in Oracle database instance…help!

My team and I have Googled (and Binged!) our guts out trying to find an answer to this issue, so hopefully the Oracle gurus on SF will know the answer. A week ago we had a power outage in the ...
2
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1answer
109 views

pl/sql Oracle syntax

I have a query in pl/sql that i need to migrate to ms sql. select count(*) from table1 t1 where (conditions1) and (conditions2) and variable = t1.column1(+) Could anyone tell me what the (+) after ...
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3answers
1k views

Cannot connect to oracle using oci_connect() on reboot

I am trying to setup a local development box. The box's on Linux Mint. Installed apache, php and mysql without any problem, then I proceeded to install Oracle Xpress Edition as my newest project ...
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6answers
303 views

Are there any good free or cheap tools for building an Oracle Database diagram?

I need to diagram an oracle database and I am hoping to find some good tools that are either cheap, or free. Ideally the tool should allow me to draw the relationships between the tables, as well as ...
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1answer
490 views

How do I give access to execute packages and select from table for another schema

I have a schema called SCHEMA1 with packages and tables that needs to be accessed by user SCHEMA2. I want SCHEMA2 to have access for executing packages and look at source code. Also I would like to ...
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3answers
28k views

Oracle difference between SID, DB Name, DB Domain, Global Database Name, Service Name, Service Alias and Instance Name

Can someone explain to me what's the difference of SID, DB Name, DB Domain, Global Database Name, Service Name, Service Alias and Instance Name in Oracle ? Thanks Michael
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3answers
13k views

Granting Read-Only access to an existing Oracle Schema

we've got an Oracle 11g Schema that our application uses to select, insert and update, but we've had a request from one of our customers to provide read-only access to the same base tables and views ...
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2answers
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Oracle 9i Instance Memory Usage?

My question deals specifically with a way to tell how much memory is being used by an Oracle instance on a UNIX (Solaris) server. For example (I'm gonna really oversimplify this...), if I see that ...
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6answers
424 views

Setting up a web server on a VM

Running: Windows Vista Ultimate x64 I'm a web developer, using mainly PHP and MySQL, and I've decided that using XAMPP doesn't cut it any more (I want to play with the Oracle database system, and ...
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3answers
204 views

Is there a Oracle issues database?

Does anyone knows where to find the description for an Oracle issue? That is the oracle issue database? I have found a patch for my product, and the release notes says ( in my own words ) Fixed ...