0 ETL using Oracle DBMS_HS_PASSTHROUGH and SQL Server
While I prefer a “loosely coupled architecture” for replication between Oracle and SQL Server, sometimes a direct (database) link cannot…
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0 Node.js run from GitHub in Generic Docker Container backed by Dockerized Redis Cache
In a previous article I talked about a generic Docker Container Image that can be used to run any Node.js…
0 Sequential Asynchronous calls in Node.JS – using callbacks, async and ES6 Promises
One of the challenges with programming in JavaScript (ECMA Script) in general and Node.JS in particular is having to deal…
0 Golden Gate 12c and DIY Sequence Replication with PL/SQL
Recently, while migrating AIX 11gR2 Databases to Oracle Linux 12cR1 on an ODA X5-2, our setup of Sequence Replication by…
0 Smooth, easy, lightweight – Node.js and Express style REST API with Java SE
It is easy to be seduced by some of the attractive qualities of Node (aka Node.js) – the JavaScript technology…
0 R: Utilizing multiple CPUs
R is a great piece of software to perform statistical analyses. Computing power can however be a limitation. R by…
1 Better track the Usage of Database Options and Management Packs, or it will cost you
So here it is Oracle announces a license audit, some urgency kicks in and this familiar but also really serious…
0 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…
0 Development and Runtime Experiences with a Canonical Data Model Part I: Standards & Guidelines
Introduction In my previous blog I’ve explained what a Canonical Data Model (CDM) is and why you should use it.…
0 Development and Runtime Experiences with a Canonical Data Model Part II: XML Namespace Standards
This blog is about XML namespace standards. Primary for using them in a Canonical Data Model (CDM), but also interesting…
2 Development and Runtime Experiences with a Canonical Data Model Part III: Dependency Management & Interface Tailoring
Introduction This blogpost is part III, the last part of a trilogy on how to create and use a Canonical…
0 Oracle Service Bus : disable / enable a proxy service via WebLogic Server MBeans with JMX
At a public sector organization in the Netherlands an OSB proxy service was (via JMS) reading messages from a WebLogic…
1 Dump Oracle data into a delimited ascii file with PL/SQL
This is how I dump data from an Oracle Database (tested on 8i,9i,10g,11g,12c) to a delimited ascii file: Next to…
3 DIY Parallelization with Oracle DBMS_DATAPUMP
Oracle dbms_datapump provides a parallel option for exports and imports, but some objects cannot be processed in this mode. In…
0 Node.js application writing to MongoDB – Kafka Streams findings read from Kafka Topic written to MongoDB from Node
MongoDB is a popular, light weight, highly scalable, very fast and easy to use NoSQL document database. Written in C++,…
0 Kafka Streams and NodeJS – Consuming and periodically reporting in Node.JS on the results from a Kafka Streams streaming analytics application
In several previous articles on Apache Kafka, Kafka Streams and Node.JS for interacting with Apache Kafka, I have described how…
2 Apache Kafka Streams – Running Top-N Aggregation grouped by Dimension – from and to Kafka Topic
This article explains how to implement a streaming analytics application using Kafka Streams that performs a running Top N analysis…
2 Getting Started with Kafka Streams – building a streaming analytics Java application against a Kafka Topic
Kafka Streams is a light weight Java library for creating advanced streaming applications on top of Apache Kafka Topics. Kafka…
0 Download all directly and indirectly required JAR files using Maven install dependency:copy-dependencies
My challenge is simple: I am creating a small Java application – single class with main method – that has…
0 NodeJS – Publish messages to Apache Kafka Topic with random delays to generate sample events based on records in CSV file
In a recent article I described how to implement a simple Node.JS program that reads and processes records from a…