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You don’t understand blockchain unless you understand this simple data structure

The blockchain is an immutable, ordered, back-linked list of blocks of transactions. If you want to truly understand blockchain you need to …

Databases

3 pitfalls everyone should avoid with hybrid multicloud

<i>This article was co-written with Roel Hodzelmans.</i>We're all told the cloud is the way to ensure a digital future for our businesses. But which cloud? …

Hybrid Clouds

Oracle 18c: 26 Remarkable new features of Oracle Database 18c..!!

March 19, 2018 by Joel Perez<p>Oracle 18c: 26 Remarkable new features of Oracle Database 18c..!!<p>Oracle 18c: 26 Remarkable new features of Oracle …

15 Useful ‘sed’ Command Tips and Tricks for Daily Linux System Administration Tasks

Every system administrator has to deal with plain text files on a daily basis. Knowing how to view certain sections, how to replace words, and how to …

SQL Indexing and Tuning e-Book for developers: Use The Index, Luke covers Oracle, MySQL, PostgreSQL, SQL Server, ...

<i>Preface</i> — Why is indexing a development task?<p><i>Anatomy of an Index</i> — What does an index look like?<p><i>The Leaf Nodes</i> — A doubly linked list<p><i>The B-Tree</i> — …

Python tricks for artists: How to add interactivity to any Python script

Catch up on the series, Python tricks for artists:<p>Scripts are a great way to automate the tedious parts of your creative work and allow you to focus …

Python Programming

Azure Data Architecture Guide

This guide presents a structured approach for designing data-centric solutions on Microsoft Azure. It is based on proven practices derived from …

Docker for Beginners Part 1 – Containers and Virtual Machines

Part 1 - Containers and Virtual Machines<p>Hello!<p>This is the <b>Part 1</b> from the Docker series - Docker for Beginners in 8 Parts. In this post we're going to …

Virtualization
IT

How to Block USB Storage Devices in Linux Servers

In order to protect sensitive data extraction from servers by users who have physical access to machines, it’s a best practice to disable all USB …

Linux
Linux

Statistics and PowerBI Visualizations, Part Two

In the previous post, we went over the details of DBCC_SHOW_STATISTICS, now let’s see how this comes together. We shall run the histogram for the …

Databases

How to install/update Intel microcode firmware on Linux

I am a new Linux sysadmin. How do I install or update microcode firmware for Intel/AMD CPUs on Linux using the command line option?The post How to …

Linux

Blockchain’s Applications Extend Beyond FinTech and Cryptocurrencies

Cryptocurrencies and accompanying FinTech (financial technologies) are all over the news. The underlying system that supports these cryptocurrencies …

How Serverless Computing will Change the World in 2018

Serverless computing is a fairly new concept that has somewhat exploded in terms of popularity. This is in-part due to AWS’ Serverless offering, AWS …

Cloud Computing

A Look at Ten New Database Systems Released in 2017

As editor of Database Weekly, a weekly newsletter on what’s new in the world of databases and data storage generally, I enjoy poking around new …

Databases

Oracle Database on Docker - Best Practices

This slide deck describes some of the best practices found when running Oracle Database inside a Docker container. Those best practices are general observations collected over time and may not reflect your actual environment or current situation

Para virtualization vs Full virtualization vs Hardware assisted Virtualization

Virtualization is nothing but abstracting operating system, application, storage or network away from the true underlying hardware or software. It …

Vmware
Language
Linux
Linux

Decentralized and Distributed Databases, Explained

1.<p>What is a database?<p><i>A database is an organized collection of information or data.</i><p>Nowadays there is a large stream of information, and the challenge …

40 Linux Server Hardening Security Tips [2017 edition]

Securing your Linux server is important to protect your data, intellectual property, and time, from the hands of crackers (hackers). The system …

Linux

Six Strategies for Application Deployment

There are a variety of techniques to deploy new applications to production, so choosing the right strategy is an important decision, weighing the …

What is a blockchain? GeekWire’s guide to this game-changing technology and its vast potential

Most technologies touted as “game-changing” are just somewhat modified versions of something already in use. Blockchains are different, and while it …

Blockchain

ENABLE_DDL_LOGGING In Oracle 12c - ORACLE-HELP

This <b>ENABLE_DDL_LOGGING</b> parameter has been introduced in Oracle 12c.<p>If this <b>ENABLE_DDL_LOGGING</b> is enabled, then DDL records are written to the ADR.<br>All …

Unified Audit Trail In Oracle 12c - ORACLE-HELP

<i>Even if no new policy is created in database, Audit action of the above audit options will be recorded in unified_audit_trail.</i><p><b>Below are few test</b> …

Python Programming