MySQL - The world's most popular open source database
Apache Hive - Apache Hive data warehouse software facilitates querying and managing large datasets residing in distributed storage.
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
Greenplum Database - Greenplum Database is an open source parallel data warehousing platform.
Oracle Database 12c - Simplify database management and automate the information lifecycle with maximum security.
Teradata Database - Teradata Database is a high performance analytical database.