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A software application that enables relational databases to be created, managed and queried. The database management system enables multiple users to access a database through an appropriate interface. As an open source tool, MySQL underpins a number of free software projects, such as WordPress, phpBB and other software built on a LAMP infrastructure. Although widely used, there are a number of performance issues that limit its use in some environments. For example, it is unable to use multiple CPU cores to process a single query, potentially limiting its use as a data warehouse.

Features:

X/Open XA distributed transaction processing (DTP) support

Connector/ODBC enables connection to a MySQL server using the Open Database Connectivity (ODBC) API

Connector/NET enables developers to create .NET applications that use data stored in a MySQL database

A server-side software application that enables databases conformant to a relational data model to be created, managed and queried. Information, most commonly text may be stored as one or more records contained within a table. The table may exist in isolation or have some relationship to other tables. Information may be manipulated using a set of T-SQL or ANSI SQL commands. Several editions of SQL Server 2014 are available, including SQL Server Business Intelligence, Developer, Enterprise, Express, Standard and Web.

Features:

Service Broker

Replication Services using transaction, merge, or snapshot replication

Analysis functionality to perform data mining, OLAP and other services

Report generation services

Enterprise scalability across compute, networking, and storage

Consistent data platform on-premises to cloud

Easy integration with Microsoft Azure

Oracle Database is a powerful and extensive relational database management system (RDBMS). There are restrictions on the free version of the software.

Features:

Supports symmetric multiprocessing (SMP)

Stores data logically in the form of tablespaces and physically in the form of datafiles

Transportable tablespaces

Advanced Queuing (AQ)

64-bit database

Data Mining Option