MariaDB sets the standard for open source relational databases, with Oracle Database compatibility (e.g., sequences and PL/SQL), temporal tables, transparent sharding, instant schema changes, point-in-time rollback and modern SQL (i.e., common table expressions (CTEs), window functions, JSON functions and more). MariaDB also includes pluggable storage engines like ColumnStore, which can be used to work with massive amounts of data to provide real-time analytics at scale, and even a Distributed SQL solution, MariaDB Xpand .