MSSQL server is Microsoft initiated relational database management system (RDBMS) software that has capabilities to store and retrieve data as required by other software programs that maybe running on the same system or on a network of systems. The SQL server runs on T-SQL a programming extension developed by Microsoft and Sybase that have added many features to the traditional SQL. It comes in various editions. The enterprise edition is designed for the large enterprises with complex databases. Standard edition is suitable for the SMBs, e-commerce sites and data centers. Workgroup edition for the small businesses to be used as a backend database on small servers and Express edition that if free with the least features. MSSQL server first release was in 2005 and the latest version MSSQL server 2016 improves upon all the previous editions. It is a highly secure, flexible, scalable and reliable platform ideal for businesses with mission critical applications.