Thursday, February 25, 2010

Hyperion, SQL and APEX, Lies, Damn Lies and Statistics, SOA, OBIEE


Hyperion

Just came across a Hyperion blog I hadn't seen before, one run by Johnson & Associates Consulting called the Hyperion Consultant Blog. Let me know what you think of it.

SQL and APEX

A posting over at John's Blog touches the tip of the veritable iceberg of the potential impact of views on performance. Through a simple example he shows how you can end up with a reduntant sort operation from using a view. But there can be lots of other impacts, and I've seen views of such intricacy and inefficiency that they've turned out to be the cause of major performance problems. Often it starts out as: well, we just need a view to simplify coding this report. Then over the months and years it is forgotten that the view was created for a specific report and it starts to be used as if it were a table, then there are modifications, then someone creates a view that uses the view as an element, and from there it's all downhill in a handbasket.

So views are a great way to help out developers, but don't let them take on a life of their own or they can become a real problem.


On APEX, have you been hearing the hoopla about Application Express for a long time and meaning to 'get around to that'? Well, have a look at this site and you can set up an account and mess around in your very own workspace to get familiar with APEX. I think you will find it an elegant and useful product for fast development (and a lot of more complex tasks).


One more item in the wonderful world of APEX this week: How to Avoid Bot Spammers in APEXover at Martin Giffy D'Souza's APEX blog.

Lies, Statistics and Their Ilk

In a posting entitled Autotrace Lies Too! Kerry Osborne digs in to some of the behavior of autotrace and the intricacies of how close an explain plan is to what the optimizer really ends up doing. He points back in the posting to an excellent posting from Tom Kyte on the same subject.

SOA

Looking for a trimmed down summary of SOA 11g: Cluster installation? Well, there's the link over at the SOA@Oracle SCA, BPEL, BPM & Service Bus. The blog title is almost as long as the process.

OBIEE

Working with OBIEE? You should definitely take a look at the Oracle Business Intelligence obiee 101 blog. Lots of nice little technical how-to's. Definitely something to add to your RSS feeds. Example: OBIEE Popup Box.

1 comment:

pegasys said...

CRM is now a mature market with enterprise vendors offering end-to-end integrated solutions. Hence, the main focus for our CRM offering is the customer and how to bring more value to the end-user. Pegasys CRM services comes in all shapes and sizes from extensions to Microsoft Office over a call center to high-end opportunity management and selling tools for increasing effectiveness and efficiency.Thanks. CRM Services

Official, Youbetcha Legalese

This blog is provided for information purposes only and the contents hereof are subject to change without notice. This blog contains links to articles, sites, blogs, that are created by entities other than Oracle. These links may contain advice, information, and opinion that is incorrect or untested. This blog, links, and other materials contained or referenced in this blog are not warranted to be error-free, nor are they subject to any other warranties or conditions, whether expressed orally or implied in law, including implied warranties and conditions of merchantability or fitness for a particular purpose. We specifically disclaim any liability with respect to this blog, links and other materials contained or referenced in this blog, and no contractual obligations are formed either directly or indirectly by this blog, link or other materials. This blog may not be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without our prior written permission. The opinions and recommendations contained in this blog(including links) do not represent the position of Oracle Corporation.

Oracle, JD Edwards, PeopleSoft, and Siebel are registered trademarks of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners.