PostgreSQL

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Maciek Rząsa

Timestamp Truncation: A Ruby on Rails ActiveRecord Tale

By Maciek Rząsa

Tests should keep apps from being flaky. But tests themselves can become flaky—even the most straightforward ones. Here’s how we dove into a problematic test on a PostgreSQL-backed Rails app, and what we uncovered.

< 5 minute readContinue Reading
Dallas H. Snider

An HDFS Tutorial for Data Analysts Stuck with Relational Databases

By Dallas H. Snider

The Hadoop Distributed File System (HDFS) is a scalable, open-source solution for storing and processing large volumes of data. With its built-in replication and resilience to disk failures, HDFS is an ideal system for storing and processing data for analytics.

In this step-by-step tutorial, Toptal Database Developer Dallas H. Snider details how to migrate existing data from a PostgreSQL database into the more efficient HDFS.

10 minute readContinue Reading

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