Data Engineering Resources

Custom Error Handling Framework for an Enterprise Using MuleSoft

Learn how to make that Mule gallop like a horse by creating your own custom exception handling framework for your MuleSoft app.

December 22, 2017

by Rakesh Kumar Jha

· 13,332 Views · 4 Likes

Too Many PreparedStatement Placeholders in Oracle JDBC

In this post, we discuss a particular error related to JDBC making calls out to an Oracle database. Read on for the details.

December 22, 2017

by Dustin Marx

· 18,814 Views · 2 Likes

4 Ways to Choose Which Browsers and Devices to Test

You can't test EVERY device/browser, but you can make some educated choices. Read on to figure out the devices and browsers you target for testing your web apps.

December 22, 2017

by Alex McPeak

· 12,408 Views · 1 Like

A Guide for Customer Retention Analysis With SQL

See how to make basic customer retention analysis, build customer retention over time, deal with new vs. existing customers retention curves, and calculate retention analysis in cohorts.

December 22, 2017

by Luba Belokon

· 27,953 Views · 4 Likes

Ring Buffer: A Data Structure Behind Disruptor

In this article, we look at Disruptor, a library for passing messages between threads, and look at how it's data structure enables high performance.

December 21, 2017

by Grzegorz Mirek

· 24,995 Views · 6 Likes

The Evolution of EC2 Network Performance: m3, m4, and m5

So, are AWS EC2's fancy new m5 instances worth it? In a word: yes. See the performance impact and cost savings you can expect.

December 21, 2017

by Andreas Wittig

· 12,445 Views · 4 Likes

Data Visualizations With InfluxDB and Plotly.js

Walk through creating data visualizations with InfluxDB and plotly.js, a JavaScript graphing library built on top of d3.js and stack.gl.

December 20, 2017

by Margo Schaedel

· 14,375 Views · 3 Likes

Implicit vs. Explicit Cursor: Which Should You Use?

"Hmmm," you might be saying to yourself, "a conversation about SQL queries in a post on conditional logic? That's strange." Ah, but maybe not so strange.

December 20, 2017

by Steven Feuerstein

· 8,613 Views · 2 Likes

Elasticsearch for Dummies

Get to know the basics of Elasticsearch, its advantages, how to install it, and how to index documents using Elasticsearch.

December 20, 2017

by Alex Mailajalam

· 10,225 Views · 1 Like

Install oh-my-zsh on Windows

This tutorial is for Windows users who want to set up oh-my-zsh, an open source framework for managing your z shell, or ZSH, configuration.

December 20, 2017

by Michal Bocek

· 29,103 Views · 2 Likes

Row Level Security in Hibernate Using @Filter

Learn how to give certain people permission to view certain parts of your database, and thus increase your database's security.

December 20, 2017

by Ali Akbar Azizkhani

· 22,816 Views · 12 Likes

Highly Available Docker Registry on AWS With Nexus

Want a place to keep your Docker images that won't fail when the chips are down? See how you can create an HA repo on AWS using Nexus.

December 20, 2017

by Mohamed Labouardy

· 11,528 Views · 5 Likes

Making Graph Databases Fun Again With Java

Graph databases need to be made fun again! Not to worry — the open-source TinkerPop from Apache is here to do just that.

December 20, 2017

by Otavio Santana

CORE

· 22,867 Views · 12 Likes

Looking Inside Postgres at a GiST Index

What does the GiST API do? And what does it mean to extend Postgres’s indexing system, exactly? Read on to find out!

December 19, 2017

by Pat Shaughnessy

· 11,983 Views · 5 Likes

How to Pick Different CSV Files at JMeter Runtime

A CSV file is a file that enables users to represent data in a table format. Learn how to manipulate CSV files using the open source tool JMeter.

December 19, 2017

by Sebastian Lorenzo

· 17,212 Views · 2 Likes

Data Transformation: CSV to XML With Apache Camel

Learn how to convert a CSV message into XML using Camel Apache Processor, or from any format into another, with code examples.

Updated December 19, 2017

by Jitendra Bafna

· 41,991 Views · 7 Likes

Communicating Between Microservices

Inter-service communication is essential to consider when building microservices. Learn about the characteristics and benefits of different communication styles.

December 19, 2017

by Piotr Mińkowski

· 199,432 Views · 119 Likes