Choosing between MySQL, MariaDB and PostgreSQL - Educating on the differences

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Part 2 of a 3-part series: Database Trends — What is changing in the database world



In this segment, Kaj Arnö continues the conversation with Kellyn Gorman (Redgate), focusing on how organisations choose between MySQL, MariaDB, and PostgreSQL.



Rather than comparing features alone, the discussion highlights what truly drives decisions in practice: migration complexity, compatibility, and operational risk.



Key topics:

• Why database migrations are often underestimated

• How compatibility can significantly reduce migration effort

• Practical considerations when choosing between MySQL, MariaDB, and PostgreSQL



“Most processes are not going to require refactoring… that’s going to decrease your migration time.”



This part offers a grounded, experience-based perspective on database decision-making in real-world environments.