Final answer:
The described application, where only one user accesses the database at any given time, is known as a single-user database application. Unlike multiuser or e-commerce database applications, it does not require concurrency control.
Step-by-step explanation:
An application where only one user accesses the database at a given time is an example of a single-user database application. This type of application is designed so that only one person can interact with the database at any one time, ensuring that no concurrency control is needed as there are no simultaneous transactions. A multiuser database application, on the other hand, allows multiple users to access the database at the same time and requires mechanisms for handling concurrent access. An e-commerce database application would typically be a multiuser application as it needs to handle numerous customers and transactions simultaneously.