Frequently Misused Metrics in Oracle

Lying Businessman

Back in March of last year I wrote an article on the five frequently misused metrics in Oracle: These Aren’t the Metrics You’re Looking For.

To sum up, my five picks for the most misused metrics were:

Business Graph

  1. db file scattered read – Scattered reads aren’t always full table scans, and they’re certainly not always bad.
  2. Parse to Execute Ratio – This is not a metric that shows how often you’re hard parsing, no matter how (more...)

IT Stockholm Syndrome

Shrugging

Random thoughts on a Friday afternoon…

We’ve all got problems. More to the point, every IT department or team has problems of some kind. It’s why we hire consultants, buy products, start long and arduous journeys into the great unknown depths of root cause analysis, and so on.

What fascinates me is the level at which we come to identify with our problems. When I’ve gone into an environment to deliver recommendations, the conversation usually (more...)

Oracle news you may have missed

During my time off I noted a bunch of information to dig into later, and I thought I'd make some notes as I go - see if you missed any interesting news.

I'll do a separate post for noteable blog posts.

Oracle REST Data Services

As Dimitri announced here, Oracle has another product "formerly known as" - this time it's the APEX Listener. Now known by what I think is a name that may also (more...)

APEX 5.0 Early Adopter has arrived

Suddenly a big thunder rolled through the APEX community -> Version 5.0 has arrived in an early adopter version, as published on Joel Kallmans Blog (as usual on a friday, late night over here in europe).

Over the past 10-15 month we saw numerous presentations of what we can expect in APEX 5, and many of us had our own ideas.

As soon as I got word through twitter I applied for a workspace (more...)

My Latin American Tour in March

At March I will be presenting my very successful seminar “Mastering Backup and Recovery” in some countries of Latin America for the very first time. Thank you Panama, Chile and Brazil OUGs for inviting me to your amazing countries! Please,

Join me at the next OTN Virtual Developer Day

    Hi All, On February 4, 2014 at 9:30 am PT I will be talking on the next OTN Virtual Developer Day about Oracle VM and Oracle Database. Come and discover the answers for the following questions: Does an

The Delphix Alchemist?

Gold

Alchemists are best known for their (completely fictional and entirely ridiculous, but that’s besides the point) amazing ability to turn lead into gold. Let’s face it, there’s a lot of lead in the Oracle world. Bugs, angry developers, metrics that can seem to elude human understanding…but I (more...)

Some Oracle Community News

Group Hug

With all the posts on Hadoop lately I bet you forgot I am an Oracle geek too, huh?

Well, if the name OracleAlchemist wasn’t enough to remind you, I have some news that might. Two big things have happened this week that I’d like to share.

OracleCommunity.net

OracleCommunity.net

Eddie (more...)

The High Price of Data

Piggy Bank

You’ve purchased servers, storage space, switches, cables, and countless other pieces of hardware. The Oracle licenses are bought and paid for, Enterprise Edition with a few add-ons. All told, you’ve spent a small fortune on this infrastructure. It’s finally time to start up your database and begin using it for (more...)

Hadoop Streaming, Hue, Oozie Workflows, and Hive

Elephant Painting

MapReduce with Hadoop Streaming in bash – Bonus!

MapReduce with Hadoop Streaming in bash – Part 3

Hadoop Streaming Bash

In our first MapReduce with Hadoop Streaming in bash article, we took a collection of Stephen Crane poems and used a MapReduce job to calculate ‘term frequency’–meaning we counted the number of times each word in (more...)

MapReduce with Hadoop Streaming in bash – Part 2

Hadoop Streaming Bash

In MapReduce with Hadoop Streaming in bash – Part 1 we found the ‘term frequency’ of words within a collection of documents. For the documents I chose 8 Stephen Crane poems, and our bash Map and Reduce (more...)

TF-IDF with Hadoop Streaming in bash – Part 1

Hadoop Streaming Bash

So to commemorate my recent certification and because my Java absolutely sucks, I decided to do a common algorithm using Hadoop Streaming.

Hadoop Streaming allows you to write MapReduce code in any language that can process (more...)

Cloudera Certified Developer for Hadoop (CCDH)

Happy Hadoop

Taking the Cloudera Developer Training for Apache Hadoop had many rewards — one of which was a free voucher to take the CCD-410 Exam (normally $295) which you must pass to get CCDH certified. I’m not (more...)

66 PeopleSoft Presentations from OOW 2013 Ready for Download!

The presentations used at Oracle Open World 2013 has been generously made available for public this time too by Oracle. Here are all the ones that are related to PeopleSoft.... Read more »

First glimpse on APEX 4.2.3

apex.oracle.com has been upgraded on Sept 6th 2013 to Version 4.2.3.00.07, which means a release of APEX 4.2.3 is close.

There are no release notes out yet, but what i could see we have three new Packaged Applications:

  • Service Notifications Administration
  • Data (more...)

Why use OVM for Oracle Databases

Some time ago I made a benchmark exercise to compare the performance of an Oracle Database running in a bare metal environment versus a virtualized environment to clear some of the main questions our team and clients in Revera have, such as:  Does an Oracle Database performs well on a (more...)

Featured Certification: Oracle Fusion Financials 11g Accounts Payable Certified Implementation Specialist

The "Oracle Fusion Financials 11g Accounts Payable Certified Implementation Specialist" certification is designed for implementation consultants who possess a strong foundation and expertise implementing and configuring the Fusion Accounts Payable application. This certification measures key knowledge and skills in areas such as Invoicing, Payments, Fusion Expenses, iSupplier, and Accounting (more...)

Featured Certification: Oracle Fusion Financials 11g Accounts Receivable Certified Implementation Specialist

The "Oracle Fusion Financials 11g Accounts Receivable Certified Implementation Specialist" certification is designed for implementation consultants who possess a strong foundation and expertise implementing and configuring the Fusion Accounts Receivable application. This certification measures key knowledge and skills in areas such as Receivables, Billing and Revenue Management, Collections, (more...)

Beta Testing Begins for New Oracle Database Cloud Administrator Certifications


Oracle Certification begins beta testing this week for two new upcoming certifications - the Oracle Certified Professional, Database Cloud Administrator (OCP) and the Oracle Certified Master (OCM).

Beta participation is by invitation (only) to those who currently hold the following certifications:

1) Either the "Oracle Database 11g Administrator" Certified Professional (more...)