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Oracle Database, Oracle 10g, Oracle 11g, Oracle XE, Oracle RAC, Oracle Instant Client, Oracle Data Guard and Oracle Exadata resources, news, and support articles.

A (BIG) Trick Listing Windows Updates Using PowerShell

If you (like me) are using Microsoft.Update.Session for listing the installed windows updates, you might be surprised about something I spent a lot of time today.

Our dream team here is deploying a very cool project for a client where we automated all the install/controlling  of the windows updates in an environment. After some weeks, another script is run in another environment and gets the differences between these environments and just install in this environment those updates that are  differences.  It means that was tested and approved. We will blog about it.

Watch: Hadoop vs. HBase

Every data platform has its value, and deciding which one will work best for your big data objectives can be tricky—Alex Gorbachev, Oracle ACE Director, Cloudera Champion of Big Data, and Chief Technology Officer at Pythian, has recorded a series of videos comparing the various big data platforms and presents use cases to help you identify which ones will best suit your needs.

The Great New Zealand Roadtrip

  As Thursday and Friday were holidays in the US, I decided to make the most of the time and take a little tour of part of the North Island. Many of my coworkers from Dbvisit have been asking me how my trip went so I figured I might post this as a blog… I […]

You Can Get There Making All Right-Hand Turns But …

It would appear that some DBAs are still using the optimizer_index_cost_adj parameter to make index access paths more ‘desirable’ to the optimizer. In decades past this might have been a good strategy however with the improvement in statistics gathering in recent relesaes of Oracle this might not be the case. Let’s look at an example to see why this might do more ‘harm’ than good.

FIO (Flexible I/O) - a benchmark tool for any Operating System

I just attended to an interesting session at UKOUG 14 - Liverpool, named "The least an Oracle DBA Should Know about Linux Administration". This session has been given by Martin Nash (@mpnsh).

FIO (Flexible I/O) - a benchmark tool for any operating system

I have just attended an interesting session held by Martin Nash (@mpnsh) at UKOUG 14 - Liverpool: "The least an Oracle DBA Should Know about Linux Administration" . During this session I had the opportunity to discover some interesting commands and tools such as FIO (Flexible I/O).

How to setup a full functional CentOS server

Objective: setup a full functional CentOS server step by step, including installation, configuration, hardware monitoring etcEnvironment: CentOS 5.6 64bit, HP Proliant server google_ad_client = "ca-pub-2326791955539700"; google_ad_slot = "7325280754"; google_ad_width = 336; google_ad_height = 280; Part I: Installation

How to compile mod_proxy module additionally while the Apache httpd is running

Jephe Wu - http://linuxtechres.blogspot.comEnvironment: CentOS 4.4 32bit web server,  Apache web server is running within chroot environment, it's also Cognos web gateway server.Objective: we need to enable mod_proxy module to use reverse proxy method  instead of using web gateway method to make httpd to take to Cognos server on application network segmen. (As somehow the cognos web gateway is not able to take to Cognos server anymore unless using reverse proxy method)

How to install zabbix agent on Windows

Jephe Wu - google_ad_client = "ca-pub-2326791955539700"; google_ad_slot = "7325280754"; google_ad_width = 336; google_ad_height = 280; steps:1. refer to doc at

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