The AUTO_INCREMENT column attribute is best used with . . . . . . . .

Solution (By Examveda Team)

This question is about the AUTO_INCREMENT attribute in MySQL. This attribute is used to automatically generate unique numbers for new rows in a table.

Let's look at the options:

Option A: FLOAT - FLOAT is a data type for storing decimal numbers, and AUTO_INCREMENT doesn't work with decimal numbers.
Option B: INT - INT is a data type for storing whole numbers, and this is the most common data type used with AUTO_INCREMENT.
Option C: CHARACTER - CHARACTER is a data type for storing text, and AUTO_INCREMENT doesn't work with text.
Option D: DOUBLE - DOUBLE is a data type for storing large decimal numbers, and AUTO_INCREMENT doesn't work with decimal numbers.

Therefore, the best answer is Option B: INT.

Explanation:
AUTO_INCREMENT is designed to generate unique integer values, making it suitable for situations where you need a primary key or an identifier for each row. INT is the most common data type for whole numbers, making it the perfect match for AUTO_INCREMENT.