How to Manage the Flashback Data Archive

In this post, we will continue with the theme of Information Lifecycle Management (ILM). Through ILM, I will be discussing how to successfully manage the Flashback Data Archive. Maintaining the Flashback Data Archives To add space to an existing archive: ALTER FLASHBACK ARCHIVE two_year_archive ADD TABLESPACE archive_two QUOTA 2G; To change the retention time: ALTER FLASHBACK ARCHIVE two_year_archive […]
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Distinguishing and Combating DDoS Attacks

Cyber Attacker, Brian Krebs, wrote an article criticizing criminals who use DDoS (or Distributed Denial of Service) for extortion. They flood your servers with traffic. This makes them inaccessible to your intended audience. After a few hours of attack you receive a message explaining how you can pay to make it stop. Soon after his […]
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Integrating Amazon Lex with Amazon Lambda – Instinctive Language in the Cloud

Amazon announced in a blog post on April 19 that they had made their natural language tool, Amazon Lex, generally available. First of all, Amazon Lex is – according to the Amazon website – “a service for building conversational interfaces into any application using voice and text.” Lex provides natural language understanding and speech recognition; […]
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How to Ensure You Don’t Violate UI Design Patterns

This blog post is, admittedly, a list of “User Interface failures” that you’ve suffered through, from badly designed elevators to the screen in the dashboard of your car. However, it’s also about what leads to these UI failures and how they could have been avoided — including a useful list of resources. I stay at one hotel […]
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Creating a Web Service in R

R is a powerful language and environment for statistical computing. It excels at crunching data and performing complex modeling. In application development, its strength is in creating the “back end” components. Shiny Server allows R developers to create web applications using R. It provides R functions to create pretty sophisticated user interfaces and link them […]
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