The ORE Packages

If you are interested in using ORE or just to get an idea of what does ORE give you that does not already exist in one of the other R packages then the table below lists the packages that come as part of ORE.

Before you can use then you will need to load these into your workspace. To do this you can issue the following command from the R prompt or from the prompt (more...)

Gartner 2014 Advanced Analytics Quadrant

The Gartner 2014 Advanced Analytics Quadrant is out now. Well it is if you can find it.

Some of the companies have put it up on their websites to promote their position.

For some reason Oracle hasn't and I wonder why?

Gartner Advanced Analytics MQ Feb2014

You can see that some typical technologies are missing from this, but this is to be expected. How much are companies really deploying these alternatives on real problems and in production. Perhaps the positioning (more...)

ODM Repository upgrade Issue with 4.0.1

An important announcement was made on the Oracle Data Mining discussion forum last night and I haven't seen anything on twitter about it yet (but maybe I missed it). It was about some ODM Repository migration issues that you might encounter with using ODM in SQL Developer 4.0.1 and using the Oracle Database 11.2.0.3.

Check out the full announcement here.

Make sure you have a full backup of your ODM (more...)

How To Create External Hive Table on HBase

| Mar 28, 2014

Hi All,

While building a data flow for replacing one of the EDW’ workflow using Big Data technology stack , came across some interesting findings and issues.  Due to  UPSERT ( INSERT new records or UPDATE existing records depending) nature of data we had to use Hbase, but to expose the outbound feed we need to do some calculation on HBase and publish that to Hive as external. Even though conceptually , its easy to create an (more...)

Oracle BigDataLite version 2.5.1 is now available

Back at the end of January Oracle finally go round to releasing the updated version of the Oracle BigDataLite virtual machine. Check out my previous blog post of this.

Yesterday (27th March) I say on Facebook that a new updated versions of the BigDataLite VM was released. I must have missed the tweet and other publicity on this somewhere :-(

This is a great VM that allows you to play with the various Big Data (more...)

What’s New in Dodeca 6.7.1?

Last week, we released Dodeca version 6.7.1.4340 which focuses on some new relational functionality. The major new features in 6.7.1 are:
  • Concurrent SQL Query Execution
  • Detailed SQL Timed Logging
  • Query and Display PDF format
  • Ability to Launch Local External Processes from Within Dodeca

Concurrent SQL Query Execution

Dodeca has a built-in SQLPassthroughDataSet object that supports queries to a relational database.  The SQLPassthroughDataSet functionality was engineered such that a SQLPassthroughDataSet object (more...)

Hbase : Co-relation between RegionServer and Region

| Mar 20, 2014

Hi All

While looking into HBase performance issue, one of the suggestion was to have more region for a larger table. There was some confusion around, “Region” vs “RegionServer” . While doing some digging, found a simple text written below.

The basic unit of scalability and load balancing in HBase is called a region. Regions are essentially contiguous ranges of rows stored together. They are dynamically split by the system when they become too large. Alternatively, they may (more...)

Purging corrupted OBIEE web catalog users

Sometimes it can happen that user profiles within a web catalog become corrupted for any number of reasons. In order for these user profiles to be correctly re-initialized, there's more to be done than just drop /users/JohnDoe from the web catalog.

All in all there are three distinct places which need to be cleaned:
  • /users/JohnDoe
  • /system/users/123456
  • /system/acocuntids/987654
This is really important since especially the third place contains the translation between the userid and the effective (more...)

HDFS Free Space Command

| Mar 17, 2014

Hi All

With increasing data  volume , in HDFS space could be continued challenge. While running into some space related issue, following command came very handy, hence thought of sharing with extended virtual community.

hadoop dfsadmin -report

Post running the command, below is the result, it takes all the nodes in the cluster and gives the detail break-up based on the space availability and spaces used.


Configured Capacity: 13965170479105 (12.70 TB)
Present Capacity: 4208469598208  (more...)

REAL TIME BI PODCAST ON ORACLE DATA INTEGRATOR 12C. Part II.

In the second part of the series we cover:

More discussion on ODI vs Informatica
More on migrating from OWB to ODI
Using ODI outside the data warehouse (BI Apps)
ODI in the cloud
ODI and Big Data

)

Related posts

Big Data Presentation

The Big Data presentation I gave yesterday is now available for download. In this presentation I define some common features of Big Data use cases, explain what the big deal about Big Data is all about and explore the impact of Big Data on the traditional data warehouse framework.

The OLAP Extension is now available in SQL Developer 4.0



Working around opatch – Prerequisite check "CheckSystemSpace" failed.

I recently ran into the situation where the primary mount for a Linux tech account running an OBI install was just way too small to get OBIEE 11.1.1.7.140114 through.
Prerequisite check "CheckSystemSpace" failed.
The details are:
Required amount of space(17499.766MB) is not available.
So with a bit of hacking I got around it by displacing the ./patch_storage directory and forcing opatch to stop doing a file system check (basically no (more...)

Real Time BI Podcast on Oracle Data Integrator 12c. Part I.

I recently did a podcast with Stewart Bryson (Chief Innovation Officer RittmanMead), Kevin McGinley, and Alex Shlepakov (both Oracle Analytics at Accenture).

In the first part of this two part series we cover the following areas:

ODI 12c. What are the advantages? When should you upgrade?
Migration from OWB to ODI 12c. Should you migrate? How and when?
Comparison of ODI to Informatica and other ETL tools.
ETL style vs. ELT style data integration tools.
(more...)

What’s the Big Deal about Big Data? Hear me speak at OUG Ireland. 11 March 2014. Convention Centre Dublin.

What’s the Big Deal about Big Data? Hear me speak at OUG Ireland. 11 March 2014. Convention Centre Dublin.

So what’s the Big Deal about Big Data? Oil has fueled the Industrial Revolution. Data will fuel the Information Revolution.

Not convinced? Did you know that Amazon has recently patented a technology based on a Big Data algorithm that will start the shipping process before you have completed your order. That’s right. Amazon knows that you (more...)

Ways to create Matrix report in Oracle APEX


This is another one of those articles where I pick a topic from the sample chapter of my book and share with you. Some of the other discussions in this blog from the sample chapter of my book are on dynamic breadcrumbsdata densification and ReForms. In this post, we will see 3 different ways of creating a Matrix report a.k.a Crosstab report a.k.a Pivoted report.


Let me (more...)

Big Data : Right Approach Right Solution

 

Hi All,

Past few months I have been meeting with clients and discussing their potential need of Big Data. The discuss gets to the bottom of , do they really need the Big Data ? The below link to my ITNext article talks about As big data goes bigger,IT managers are challenged with the task of identifying data that qualifies for big and finding appropriate solutions to process it.

Click Here To Read Full Article (more...)

Consuming OBIEE 11g Web Services using Java


We will talk about consuming OBIEE 11g webservices using Java in this article. My previous articles have been about consuming webservices using JavaScript and consuming webservices using PL/SQL. This is my first on consuming webservices using Java. 
My book also has a number of recipes about consuming and creating web services. Check out a brief description of the book and the table of contents.

The prerequisite for this article is Oracle JDeveloper Studio Edition (more...)

Open Source Big Data Technologies

| Jan 29, 2014

Hi All

While doing a comparison analysis for building a reference architecture for Big Data technology stumbled on a very impressive Open source Big Data Technology mashup . Thanks to http://www.bigdata-startups.com/ . The most impressive part of this mashup is breaking the whole Big Data operational paradigm into multiple stages and giving available opensource technology.

Open Source Big Data Techonologies

Hope This Helps

Sunil S Ranka

“Superior BI is the antidote to Business Failure”


How-To: File hunt for OBIEE GUI changes

Among the questions I receive and that frequently come up on OTN, treated in blog posts etc. are questions pertaining to: How do I change a part of the GUI of OBIEE? Now in this post you'll find the answer to that specific question, but the point here today isn't simply to say "do X in Y", but rather "how do you get to know that you need to change X in Y?".