Custom XPath functions in Service Bus

How can you create custom XPath functions in Oracle Service Bus 12c? And how can you use these in both XSLT and XQuery? Let’s find it out. I like to show you how they’re different in behaviour. Lees verder

Geplaatst in Blog, ESB, Java, Oracle, SOA | Tags: , , , | Plaats een reactie

Explore Apache Cassandra

Initially developed at Facebook for inbox search, Apache Cassandra is an open source, distributed and decentralized storage system. Let’s take a look at the performance. Lees verder

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MapReduce and YARN: this is how it works

Meet MapReduce: Initially a programming model devised by Google, meant for processing large datasets in multi-parallel fashion on a cluster of computers. I’ll show you a few of its use cases and give a small example application. Lees verder

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Who needs a Service Bus anyway?

Some time ago I was having a discussion about the setup of a SOA project on which a former colleague was about to work on. The purpose of this project was to implement a synchronous service API for a third party systems to integrate with. Lees verder

Geplaatst in Blog, English, ESB, legacycode, Oracle, SOA, Uncategorized | Tags: , , , | Plaats een reactie

How to deploy Apache HBase

HBase is an open source, non-relational, distributed column-oriented database built on top of HDFS. Let’s take a look. Lees verder

Geplaatst in Data science, Uncategorized | Één reactie

5 tips on Windows for Oracle DBA’s

Microsoft vs Linux – in the world of the DBA, you are likely to love the one and hate the other. When did Microsoft lose us? Maybe it was back in the day of NT4, when preventive rebooting was required as a workaround for memory leaks? Since then, Microsoft has seriously improved their product. Lees verder

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How I improve my development skills with Code Kata

Some time ago I decided to start to code in Python. I wanted to learn the Python programming language. After completing the first part on Python Basics I was feeling that my experience was not quite good enough. Lees verder

Geplaatst in cleancode, General, Programming, refactoring, Tech, Uncategorized | Tags: , , , , , , | Plaats een reactie

Oracle Big Data Lite VM with Amazon EC2

Always wanted your own Oracle Big Data Lite VM in the (Amazon) Cloud? This is your chance! I’ll show you how to set up your own Big Data Discovery environment at Amazon EC2, with Oracle Big Data Lite. Lees verder

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Certified Scrum Trainings (CSM & CSD), June 2016

A unique opportunity for ambitious IT-professionals: join a Certified Scrum Master Training (CSM & CSD) by Agile-gurus Chet Hendrickson and Ron Jeffries! Lees verder

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BIGML: explore data, find patterns and make predictions

BIGML is another way to explore the data, find interesting patterns and make predictions. Let’s take a look. In this blog you can read step-by-step the procedure I followed starting from scratch. Lees verder

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Date problems while loading benefits in Workday

During a data migration from PeopleSoft to Workday, we encountered problems with the dates when loading benefits. Let’s take a look! Lees verder

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SOA performance issue: let’s fix it

One of the problems which we have met during the last period, is a SOA performance problem. Let’s find out how to fix this! Lees verder

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My experience with Google Big Query

By: Charalampos Sarantopoulos What is my experience with the Google Big Query platform for performing time consuming and complicated operations? Discover it in my blog! Let me share with you the procedure I followed to perform a big query on Google … Lees verder

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Oracle Service Bus: error logging in Report Provider with Enterprise Manager 12c

Oracle Service Bus Monitoring can be approached in various ways. You could choose to use the OSB Alert and diagnostic framework with pipeline and SLA alerts, or you could log your exceptions in the JMS Reporting Provider. Messages and errorcodes … Lees verder

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Update: Exalogic X5-2 now comes with 160 TB of raw storage in the ZFS

Just a quick newsflash: from very reliable sources I heard that as of this week, the Exalogic X5-2 comes with a staggering 160 TB of raw storage, up from 80 TB. Wow! This is because it now comes with 8 TB … Lees verder

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