What is Database Server?
Any computer program that provides database services to other computer programs or computers is a database server. In some cases, it also refers to a computer dedicated to run such a program. Database management systems frequently provide database server functionality. Database servers are accessed through a front end running back end model.
Most Database servers work with the base of Query language. Each Database understands its query language and converts it to Server readable form and executes it to retrieve the results. Some examples of proprietary database servers are Oracle, DB2, Informix, and Microsoft SQL Server. Some examples of GNU General Public Licence database servers are Ingres and MySQL. Every server uses its own unique query logic and structure. The SQL query language is more or less the same in all relational database servers.