Databases Resources

In this blog post, a performance testing expert will cover the different ways one can parameterize Groovy tests in Spock.

Updated December 25, 2017

by Grigor Avagyan

· 8,721 Views · 2 Likes

Optimizing AWS EBS Using LVM

Linux's Logical Volume Manager is an older tool, but it can still be useful today. See how you can use it to help right-size your EBS usage and save money.

December 24, 2017

by Jack Huang

· 12,864 Views · 6 Likes

Query Store Wait Statistics With sys.query_store_wait_stats

I absolutely love Query Store. But it's easy to get your data all jumbled up when sys.query_store_wait_stats comes into the mix.

December 24, 2017

by Grant Fritchey

· 6,119 Views · 2 Likes

Understanding Server-Sent Events (SSE) as Part of the API Landscape

Server-sent events can be a positive boon for any web application. In this post, we take a look at how SSEs fit into the world of APIs.

December 23, 2017

by Kin Lane

· 13,982 Views · 3 Likes

Installing the ELK Stack on AWS: A Step-by-Step Guide

Want to bring in the ELK stack for your AWS logging and monitoring needs? This guide will get you set up with the open source solution.

December 22, 2017

by Asaf Yigal

· 44,024 Views · 8 Likes

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

· 13,257 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

· 18,574 Views · 2 Likes

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

· 27,845 Views · 4 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

· 12,396 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

· 14,332 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

· 8,499 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

· 10,199 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

· 28,976 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

· 22,745 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

· 11,478 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

· 22,754 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

· 11,853 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

· 17,109 Views · 2 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

· 199,216 Views · 119 Likes

Data Modelling: Counter Table

Sometimes, you need to avoid failure scenarios where in-memory systems aren't suitable. In those cases, I recommend using an aggregate counter table.

December 19, 2017

by Jonathan Levin

· 10,230 Views · 2 Likes

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