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Maarten Smeets
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R and the Oracle database: Using dplyr / dbplyr with ROracle in Windows 10
R uses data extensively. Data often resides in a database. In this blog I will describe installing and using dplyr, dbplyr and ROracle on Windows 10 to access data from an Oracle database and use it in R. Accessing the Oracle database from R dplyr makes the...

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Oracle Mobile Cloud Service integration options
Oracle Mobile Cloud Service has a lot of options which allows it to integrate with other services and systems. Since it runs JavaScript on Node.js for custom APIs, it is very flexible. Some features allow it to extent its own functionality such as the Fireb...

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Oracle Mobile Cloud Service (MCS) and Integration Cloud Service (ICS): How secure is your TLS connection?
In a previous blog I have explained which what cipher suites are, the role they play in establishing SSL connections and have provided some suggestions on how you can determine which cipher suite is a strong cipher suite. In this blog post I'll apply this k...

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SSL/TLS: How to choose your cipher suite
For SSL/TLS connections, cipher suites determine for a major part how secure the connection will be. A cipher suite is a named combination of authentication, encryption, message authentication code (MAC) and key exchange algorithms used to negotiate the sec...

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Oracle SOA Suite: Want performance? Don't log so much and clean up your database!
The Oracle SOA Suite infrastructure, especially composites, use the database intensively. Not only are the process definitions stored in the database, also a lot of audit information gets written there. The SOA infrastructure database, if not well managed, ...

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Oracle SOA Suite: Two-way SSL with TLS1.2 made easy (slightly less complicated)
Transport layer security is not an easy topic. Many blogs have been written about this already. Surprisingly though, I did not find a single blog which was more or less complete and provided me with everything I needed to know to get this working on SOA Sui...

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R: Utilizing multiple CPU's
R is a great piece of software to perform statistical analyses. Computing power can however be a limitation. R by default uses only a single CPU. In almost every machine, multiple CPU's are present, so why not utilize them? Utilizing multiple CPU's Luckily ...

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Oracle Mobile Cloud Service (MCS): An introduction to API security: Basic Authentication and OAuth2
As an integration/backend developer, when starting a project using Mobile Cloud Service, it is important to have some understanding of what this MBaaS (Mobile Backend as a Service) has to offer in terms of security features. This is important in order to be...

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Machine learning: Getting started with random forests in R
According to  Gartner , machine learning is on top of the hype cycle at the peak of inflated expectations. There is a lot of misunderstanding about what machine learning actually is and what it can be done with it. Machine learning is not as abstract as one...

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Oracle SOA Suite: Find that composite instance!
When executing BPM or BPEL processes, they are usually executed in the context of a specific entity. Sometimes you want to find instances involved with a specific entity. There are different ways to make this easy. You can for example use composite instance...
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