Database is a collection of related data organized according to certain structure and rules. It is a data collection formed by integrating user data and a warehouse for storing data. Network is a system that uses communication equipment and lines to connect multiple computers in different places and spatial locations with relatively independent operation, and configures certain systems and application software to realize software and hardware resource sharing and information transmission between originally independent computers. Network database is a system based on background database, plus certain foreground program, which completes data storage, query and other operations through browser.
According to the above definition, which one of the following systems does not belong to the network database?
Online banking system capable of realizing online transaction function