Migrating from SQL Server to MariaDB on the MariaDB Knowledge Base
A new series, Migrating from SQL Server to MariaDB is currently being developed on the MariaDB Knowledge Base by Federico Razolli.
Federico is a freelance database consultant, organizer of the London Open Source Database Meetup, author of the book Mastering MariaDB, and well-known member of the MariaDB community.
The series of articles will contain everything needed to migrate from SQL Server, currently including an overview of architecture differences, feature differences, a types comparison, a look at MariaDB transactions and isolation levels, as well as authorization and permissions, and replication, from the perspective of a SQL Server user.
Feel free to comment on the articles themselves, or to post questions.
Content on the MariaDB Knowledge Base is licensed CC BY-SA / Gnu FDL, so everyone is free to share and adapt the content, given proper attribution, and anyone can contribute. Federico has in the past worked extensively on Italian translations of the Knowledge Base content.
I have only tested migration of Oracle to MariaDB, funny experience.