Database Fundamentals — Question 128

Which two elements are required to define a column? (Choose two.)

Answer options

• A. A name
• B. A key
• C. An index
• D. A data type

Correct answer: A, D

Explanation

To define a column, it is essential to provide a name and a data type. The name identifies the column, while the data type specifies the kind of data that can be stored in it. Options B and C, which refer to a key and an index, are not mandatory for column definition.