Database Management Server

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Application Server
An application server is middleware that receives requests from a web server, calls programs, processes information, and generates dynamic content. As mentioned earlier, dynamic content is content that returns different results depending on the user and content of the request.

The difference is that a web server displays static content, whereas an application server displays dynamic content. Typical examples of application servers include Tomcat (used for the programming language Java), Unicorn (used for the programming language Ruby), and Apache (used for the programming language PHP).

By the way, Microsoft's IIS (Internet Information Services) is middleware that integrates the functions of both a web server and an application server, and supports both static and dynamic content. If las vegas email list the application server alone cannot handle the request, it will also send a request to a database management server to obtain information.



A database management server is a server on which a database management system runs, and is often abbreviated as "DB management server" or "DBMS." Because databases are responsible for storing large amounts of data, they have the ability to extract, edit, and share the accumulated data as needed. If the application server alone cannot fulfill a request, it will make a request to the database management server and use the database language SQL to extract and send the required information.

A typical database management server is "MySQL," which is well known as open source middleware.