mariadb-server 10.0.20-0ubuntu0.15.04.1 (amd64 binary) in ubuntu wily

 This is an empty package that depends on the current "best" version of
 mariadb-server (currently mariadb-server-10.0), as determined by the MariaDB
 maintainers. Install this package if in doubt about which MariaDB
 version you need. That will install the version recommended by the
 package maintainers.
 .
 MariaDB is a fast, stable and true multi-user, multi-threaded SQL database
 server. SQL (Structured Query Language) is the most popular database query
 language in the world. The main goals of MariaDB are speed, robustness and
 ease of use.