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Databases Demystified Lesson 4: Transactions Part 1

In this episode of Michael Kaminksy's Databases Demystified, we learn all about what a transaction is, and what ACID means. Learn why database constraints are important, and what the commands "begin" "commit" and "rollback" mean. We talk about atomicity, consistency, isolation, and durability and why transactions are so important.

Databases Demystified Lesson 6: Distributed Databases Part 1

Welcome to episode 6 of Michael Kaminsky's Databases Demystified. In this lesson, we introduce a fascinating and incredibly important topic: distributed databases. We discuss "nodes" and "clusters" and we cover the two major paradigms in distributed databases: big-compute databases and high-availability databases.

Databases Demystified: Lesson 7: Distributed Databases Part 2

Episode 7 of Michael Kaminsky's Databases Demystified. Learn about new issues we face in distributed databases and all about the CAP theorem. We'll talk about leader and follower nodes, what happens when distributed databases lose connection with a node, and what CAP stands for: consistency, availability, and partition tolerance.

Databases Demystified Lesson 3: Row vs Column Store

In Michael Kaminsky's third episode, we learn about the differences in row store vs column store database. This is a very important concept for understanding the difference between analytical and transactional databases, and we talk about the tradeoffs between using row and column stores for saving the data. Michael gets into the weeds and talks about disk blocks and the different types of queries that work well for row and column stores.

The 'new normal' of data management

There are few parts of business that the Covid-19 pandemic hasn’t impacted, in some cases creating pervasive and long-lasting change. While no one knows exactly how our lives will emerge from this upheaval, for businesses it’s clear that long term survival depends on agility. Entire workforces have been mobilised in a matter of weeks. Employees – even the Luddites among us – have had to adopt new ways of working and many are in no rush to return to the traditional office!

Survival of the stickiest: SaaS customer retention strategies for unprecedented times

IDC forecast that 2019 would be the year when enterprise IT spending by departmental managers overtook spending by the IT department itself. Cloud-based on-demand services have become the norm by lowering barriers to technology purchases and enabling cost centre managers to quickly and easily deploy the software of their choice. Flexible subscription contracts gave access to an almost unlimited bank of resource to accommodate seasonal and periodic spikes in demand.

Why COVID-19 is rewarding the frontrunners of digital transformation

With increasingly draconian measures worldwide aimed at keeping people at home to quell the spread of COVID-19, companies of all shapes and sizes and across the majority of industries are finding themselves in the same situation – how to equip and empower their workforce for mobile working. More than 5 million companies around the world will experience an impact at a cost to the global economy exceeding US$1 trillion.