A feature in Excel that allows you to graphically display in a single cell the trend across a range of cells is called a sparkline.
Answer: Database Administrator.
A Database Administrator is responsible for any design and implementation of a database in a system. They are also the people who make sure that they can secure and manage all the data in their system to avoid any problems that may occur during its usage.
They also are responsible for keeping track of changes and the accessibility of the users that will be inputting data into the database. This most especially applies to databases that are meant to keep client information and transactions for most companies.