The MySQL Enterprise Server software is the most reliable database.
Editor: MySQL Database Server is designed for enterprise organizations delivering business critical database applications. It gives corporate developers, DBAs and ISVs an array of new enterprise features to make more productive developing, deploying, and managing industrial strength applications.

If you need a GUI for MySQL Database, you can download - NAVICAT (MySQL GUI). It supports to import Oracle, MS SQL, MS Access, Excel, CSV, XML or other formats to MySQL.

MySQL Database Server delivers new enterprise features, including: Acid Transactions to build reliable and secure business critical applications. Stored procedures to Improve developer productivity. Triggers to enforce complex business rules at the database level. Views to ensure sensitive information is not compromised. Information schema to provide easy access to metadata. Distributed transactions (XA) to support complex transactions across multiple databases. Version 5.1.23 supports MySQL Events. you can free download MySQL Database Server 5.1.36 now.