Wednesday, 24 October 2007

Oracle® 11g Database Hints

I have finally installed Oracle® Database 11g Release 1 (11.1) for my testing. I will be sharing my experience with this post as I test and try to break it.

Platform: Windows XP SP2
Dell Latitude D810 Laptop
Intel Pentium M 2.0 GHz Processor
60GB Hard Drive

My first install is for Windows. As usual, the Installation Guides from the Oracle® 11g Documentation Library was very helpul.

Installation Components
There are installation changes you may want to take note of. These include the addition of the following components: Oracle Application Express, Oracle Configuration Manager,Oracle Database Vault,Oracle Real Application Testing,Oracle SQL Developer and Oracle Warehouse Builder.

Pre installation checks - DHCP
The Pre installation check now includes checking and reporting if your machine has DHCP assigned IP Address. My System has a DHCP assigned IP Address. I got the warning, but ignored it because the IP assigned to me via DHCP is Reserved for my PC on our network. Reserved is not the same as Static.

Hardware Requirements

Physical memory: (RAM) 1 GB minimum
Virtual memory: Double the amount of RAM
Disk space: Basic Installation Type total: 4.55 GB
Disk space: Advanced Installation Types total: 4.92 GB
Video adapter: 256 colors
Processor: 550 MHz minimum (On Windows Vista, 800 MHz minimum)

Take note of the following hardware requirements. This is important because if you plan to installation with preconfigured database, you System might be so slow that you cannot start anything after the install because it will automatically start the database.


Below is some contents of my SPFILETEST11DB.ORA immediately after install, before I started changing it. So, looking at it, it is important that you have at least the 1GB RAM as recommended.

test11db.__oracle_base='C:\oracle'#ORACLE_BASE set from environment
*.dispatchers='(PROTOCOL=TCP) (SERVICE=test11dbXDB)'

Deprecated Parameters


Deprecated Components

SQL*Plus Gui and iSQL*Plus is not included in the release
Enterprise Manager Java Console is not included in the release

Stanby Database

Oracle 11g allows you to use RMAN to change the db_unique_name of a Standby database using the CHANGE command CHANGE DB_UNIQUE_NAME FROM old_name to new_name. You can use this command after you have changed it in init parameter to update the recovery catalog.

Enterprise Manager Database Control
Also, the new look and feel of Enterprise Manager Console is an interesting. It is now grouped into the following tabs: Home, Performance, Availability, Server, Schema, Data Movement, Software and Support.

Why can I find my Database Tool in the EM Console?

Click my test images below.

EM Proxy and Browser Issues

I have Proxy settings on my Explorer. The bad news is that this is reset each time I log on to our Network. So, I have to change it not to proxy for my localhost, my servername and If I do not remember to do this, I keep getting Page Not found errors.

Note that this issue is not because of Oracle 11g. It is normal when you have to access any webserver related stuff on your PC and the browser has to go to the Proxy Server and back to yur PC. So whether it is 11g or 10g, you will get the same error.

Secured DB Console

I did a standard install using preconfigured setting. So by default, DB Console is secured. When I accessed with http, I kept getting a blank screen with squarea. I then checked my logs, changed the URL to use https and it worked.

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