Powershell error: sqlps.ps1 cannot be loaded because running scripts is disabled on this system

Introduction An interesting issue came across my desk this week. One of our clients has a number of PowerShell tasks ...

MySQL high availability with HAProxy, Consul and Orchestrator

Introduction In this post we will explore one approach to MySQL high availability with HAProxy, Consul and ...

Oracle parallel query hints - part 3: PX_JOIN_FILTER

In part one of this series on Oracle Parallel Query Hints, I looked at PQ_DISTRIBUTE, and part two was about ...

Spark UDF memoization

Memoization is a powerful technique that allows you to improve performance of repeatable computations. Although it ...

MySQL streaming Xtrabackup to slave recovery

Restoring a MySQL slave by manually taking a backup and then copying the file over the network can be an incredibly ...

Neo4j cluster using Vagrant, Ansible and Virtualbox

Recently, I was faced with the need to create and configure a Neo4j cluster. In order to be able to easily experiment ...

Oracle parallel query hints. A reference series part 2: PQ_REPLICATE

The Mechanics of PQ_REPLICATE in Oracle 12.2 In part 1 of this series, we talked about the basic mechanics of the ...

Why is my Forms 12c Application so slow?

After a recent upgrade Users cannot work with the forms application anymore; it has been a few weeks since an upgrade ...

RDP Issue - CredSSP encryption Oracle remediation

Introduction We have recently had some issues accessing a few client servers and found it is related to a Windows ...

Data classification with Microsoft SQL Server and Azure SQL DB (GDPR, PII, HIPPA...etc)

This blog post will cover SQL Server on-premise or IaaS and Azure SQL DB and how to classify data in both. Let's start ...

Backing up your MySQL instance physically with Docker

In a previous post, I had mentioned that I was doing a bit of digging into Docker in order to get a better grasp of the ...

Fun with Oracle Data Guard Broker

The beginning So, there we were attending to our jobs and tending to our customers when an emergency alert came in: a ...

Backup strategies in Cassandra

Authenticating Vault against LDAP for accessing MySQL through ProxySQL

Earlier this year, I was presented with the challenge of streamlining user access to MySQL, allowing users self-serve ...

Debugging CBQT OR expansion with 10053 trace

I had been working with a client to add a little bit of functionality to an analytical view that we had been running ...

Google Cloud Platform quick tip: Cloud Shell boost mode for Docker development

I explained in an earlier post how I am using GCP's Cloud Shell for all of my command-line needs all the time. Whenever ...

Graceful master switchover with ProxySQL and Orchestrator

Introduction One of the things I like about Continuent Tungsten is how Tungsten Connector can hold traffic while a ...

Azure Data Lake basics for the SQL Server DBA / developer and... for everyone!

The basics If you're a Microsoft SQL Server DBA or developer and have not been introduced to the Microsoft Azure Data ...

BTRFS performance compared to LVM+EXT4 with regards to database workloads

Introduction In many database builds, backups pose a very large problem. Most backup systems require an exclusive table ...

Debugging MySQL on Docker

Problem Statement In a recent post, my colleague and teammate Peter Sylvester explained how we could customize MySQL's ...

Azure Cloud Shell - cloud what?

What is Azure's Cloud Shell? Azure Cloud Shell is a browser-based, interactive shell that comes in two flavors: ...

Creating dynamic tasks using Apache Airflow

What's Airflow? Apache Airflow is an open source scheduler built on Python. It uses a topological sorting mechanism, ...

Deploying a private Geth network using Docker

So you’ve started developing an Ethereum project and TestRPC has worked wonderfully. Now you're ready to set up a CI/CD ...

Infographic: five ways to make analytics for everyone

It’s not a stretch to say that data is taking over the world. You can see the signs everywhere, from news stories ...

Datascape podcast episode 26: a brief tour of the Google Cloud Platform

In episode 26 of the Datascape, we give you a whirlwind tour of the Google Cloud Platform, otherwise known as GCP. We ...