Data Engineering Resources

Feeding Server Timing API from ASP.NET Core

The latest addition to ASP.NET Core's performance metrics APIs is the Server Timing API. We take a look at how to make use of these metrics in your ASP.NET Core web app!

June 9, 2017

by Tomasz Pęczek

· 8,314 Views · 3 Likes

Validating JAX-RS Query Parameters

This quick and simple guide will walk you through the steps to validate JAX-RS query parameters using filters, including their creation and enforcement.

June 8, 2017

by Abhishek Gupta

CORE

· 24,733 Views · 3 Likes

Entity Framework: new() vs. DbSet.Create()

In Entity, the new and DbSet.Create methods have similar goals with different behaviors. See when to use which one when instantiating new entities.

June 8, 2017

by Tomasz Pęczek

· 11,207 Views · 2 Likes

Apache Spark: Reading CSV Using Custom Timestamp Format

Here's the solution to a timestamp format issue that occurs when reading CSV in Spark for both Spark versions 2.0.1 or newer and for Spark versions 2.0.0 or older.

June 7, 2017

by Jyotsna Karan

· 28,946 Views · 1 Like

Exposing Microservices Over REST Protocol Buffers

Protocol Buffers are a high-performance alternative to text-based protocols like XML or JSON. Adapting them to a Spring Boot application is easy with these steps.

June 7, 2017

by Piotr Mińkowski

· 25,752 Views · 11 Likes

JUnit Testing for Solr 6

Want to test your Solr queries with JUnit? This guide will help you set up your dependencies and create and implement your tests.

June 7, 2017

by Upul Kamburawala

· 19,561 Views · 3 Likes

Mastering the Couchbase N1QL Shell: Scripting

Previously, we saw how to interact with the N1QL Rest API and issue prepared statements. With this article, let's dive a little deeper into scripting with the N1QL shell.

June 7, 2017

by Isha Kandaswamy

· 5,260 Views · 2 Likes

10 Quick Dataweave Functions

This quick reference collects many Dataweave functions for MuleSoft in one place, like reversing strings and flattening and trimming a payload.

June 6, 2017

by Satheesh Kumar

· 84,626 Views · 9 Likes

Unit Testing: The Myth of Complete Isolation

The notion that unit tests should be performed in complete isolation is a myth. We should use isolation to our advantage, wherever it makes our tests more manageable.

June 6, 2017

by Grzegorz Ziemoński

· 15,868 Views · 12 Likes

Merge Databases With Different Schema and Duplicate Entries

Removing duplicate entries from merged database tables can be anything but routine — and the source of performance woes.

June 6, 2017

by Darren Perucci

· 11,739 Views · 2 Likes

What's Wrong With Hashcode in java.lang.String?

This overview of strings and hashcode covers how hashcode works, how collisions happen, and the danger of improperly using strings as keys.

June 6, 2017

by Artem Rukavytsia

· 59,634 Views · 35 Likes

Using Python to Store Data From Many BLE Devices

We take a look at how to collect and store data from several BLE devices, a necessary issue to deal with considering the built-in limitations of BLE networking.

June 6, 2017

by Erich Styger

· 24,174 Views · 1 Like

Creating an Online Spreadsheet Application

Looking to make a spreadsheet web application for your team to chart their work? Read on to learn how to do just that using the open-source framework, Webix.

June 6, 2017

by Ivan Petrenko

· 12,632 Views · 7 Likes

Simple Attribute-Based Access Control With Spring Security

Have you ever worked on software where the access rules are based not only on user's role but also on the specific entity that role was granted? You will probably find Attribute-Based Access Control very useful — this article will tell you how.

Updated June 5, 2017

by Mostafa Eltaher

· 130,116 Views · 45 Likes

Building Dynamic React Apps With Database Data

In this post, we go over using an API server to create a REST API for a SQLite database, and how to create a React app that can use this database.

Updated June 5, 2017

by Jerod Johnson

· 122,489 Views · 7 Likes

Getting Started With MonoGame Using XML

Want to start making some video games? Learn how to use XML with the MonoGame framework and get started. Read on for more!

June 5, 2017

by Simon Jackson

· 8,820 Views · 1 Like

Ultra-Fast OLAP Analytics With Apache Hive and Druid (Part 1)

Druid is a high-performance, column-oriented, distributed data store. Learn how it's great for low-latency analytics and why you should integrate it with Apache Hive.

June 5, 2017

by Carter Shanklin

· 17,033 Views · 11 Likes

MSSQL: Finding Weekend Days in Month

Although it is usually a good idea to use calendar tables that we can fill automatically, it is not always an option. Here's how to deal with that.

June 5, 2017

by Gunnar Peipman

· 13,865 Views · 2 Likes

The Pros and Cons of AWS Lambda

If you're considering getting your feet wet with serverless, be mindful that while AWS Lambda has plenty of benefits, you lose some control and call simplicity as well.

June 4, 2017

by Matt Billock

· 45,994 Views · 15 Likes

How to Handle Huge Database Tables

Learn how to design your huge database tables to ensure they can handle queries without slowing the database's performance to a crawl.

June 4, 2017

by Darren Perucci

· 18,293 Views · 6 Likes

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