Which button do you select to enter a formula for calculating total values using a database function?

To calculate total values using a database function, the Insert Function option is the appropriate choice. This feature allows users to easily access a wide range of functions, including database functions, which are specifically designed for performing calculations on data stored in a table or database format.

When you select the Insert Function button, a dialog box appears that enables you to search for and select the desired function. You can type in keywords to find database functions such as SUM, AVERAGE, or specific database-related calculations. By utilizing Insert Function, you can streamline the process of creating formulas that accurately reflect the data you work with.

Other options like Formula Manager, Function Library, and Database Tools pertain to aspects of managing or organizing formulas and functions within a spreadsheet or database environment but do not specifically facilitate the direct entry of functions in the way that Insert Function does. Each of these alternatives serves different purposes in relation to formula usage and database management, making Insert Function the most effective choice for entering a formula for calculating total values.