blog.fatalmind.com
Latency: Security vs. Performance | Software Quality is Quality of Life
http://blog.fatalmind.com/2009/12/22/latency-security-vs-performance
Software Quality is Quality of Life. Latency: Security vs. Performance. I have witnessed a very short talk between a network engineer and a top-level manager at a client’s Christmas party. The network guy explained that the firewall adds about 0.2 milliseconds latency to each round trip between the application server and the database, which adds up to some hours in one particular case. So the manager asked what could be done and the network guy provided two solutions:. Drive to the super market. Is a gre...
oracle-study-notes.blogspot.com
Oracle Study Notes by Denis: September 2013
http://oracle-study-notes.blogspot.com/2013_09_01_archive.html
Oracle Study Notes by Denis. I am starting to study SQL Server as well. Wednesday, September 11, 2013. Avoid Merge Join Cartesian in a SQL Tunning Exercise. The AUTOTRACE statistics is as follows:. By comparing the E-rows and A-rows from the execution, it is easy to identify that the problem starts from the operation id 25 and 26, where E-rows=1 and A-rows=1839 and 1894. With E-rows=1, Oracle CBO decides to use "MERGE JOIN CARTESIAN". Notice at the end, CBO estimate only 1 row whereas actual number o...
konagora.com
konagora
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Konagora is a web-site that has been established by RoughSea Limited. As an independent site to deal exclusively with training over the web. If you want to reach us for questions directly related to this website, please email us at. Based on an original design by Boris Cherny. C) 2016 RoughSea Limited.
konagora.com
konagora
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By participating in this site you agree that all types of communities need rules of conducts, and that you shall conform to rules of acceptable behavior as defined here, more specifically in areas of the site such as forums where you can express yourself. Any proven type of harassment or bullying will result in your being barred from this site. On technical topics, you are expected to show some restraint and respect for others. You can flag posts that you find offensive. Posts that are flagged by thr...
konagora.com
konagora
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A great class with a great lecturer or instructor is probably the best way to learn a new topic. Unfortunately, classes are expensive to organize, and as a result expensive to attend. It is our belief that knowledge shouldn't be the preserve of people that live in the few great metropolises of the world where classes are regularly proposed, nor of people who can afford expensive education or work for companies that can afford courses for them. Based on an original design by Boris Cherny.
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We are very keen on making our courses available to as wide an audience as possible. In particular, we wish to make them accessible to the numerous people who are eager to learn but still have a weak grasp of English. Do you want to help us make our material available in one of the other ten most influential languages. It can be a great opportunity to put your name in a favorable light in front of people who are working hard to become IT specialists and factors of change in their countries.
konagora.com
konagora
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Check the companion site. Of the coming book SQL Success. Konagora is a web-site dedicated to training. Our purpose is to spread quality technical training on the web, with a stress on concepts and fundamentals. We shall use means that can be innovative or classic, but, we hope, never boring. As the header shows, this site is currently in BETA. Status. In other words, it's (still) a work in progress. Many features will become available at a later stage. In the meantime, don't hesitate to .
konagora.com
konagora
http://www.konagora.com/static/credits_en.php
A great class with a great lecturer or instructor is probably the best way to learn a new topic. Unfortunately, classes are expensive to organize, and as a result expensive to attend. It is our belief that knowledge shouldn't be the preserve of people that live in the few great metropolises of the world where classes are regularly proposed, nor of people who can afford expensive education or work for companies that can afford courses for them. Based on an original design by Boris Cherny.
konagora.com
Konagora Courses
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Thu, 7 Jul 2011. Logical and physical design. Fri, 19 Mar 2010. Understanding the principles of DBMS products. Thu, 18 Mar 2010. Philippe Campos and Sean Hull. Thu, 18 Mar 2010. Thu, 7 Jul 2011. Basics of Oracle administration. Thu, 7 Jul 2011. Thu, 14 Oct 2010. A not-so-basic first SQL course. Thu, 7 Jul 2011. A number of short presentations on SQL topics. Based on an original design by Boris Cherny. C) 2016 RoughSea Limited.