Answer:
Web-based database requests are received by the Web server, which then converts the request into a database query and passes it on to the database server with the help of software called middleware.
Step-by-step explanation:
The middleware consists of a software system of multiple purposes that provides other apps with services, external from the ones offered by the operative system. Any software which intermediates between the kernel and the end-user applications can be considered as middleware. It does not offer the functions of a traditional app but serves as a link between two software.