DA0-001 · Question #250
In comparison to other data types, which of the following can hold a mix of numbers and letters?
The correct answer is D. Alphanumeric. The alphanumeric data type is specifically designed to store a combination of both alphabetic characters (letters) and numeric digits (numbers), along with other symbols. This distinguishes it from data types that exclusively store numbers or single characters.
Question
In comparison to other data types, which of the following can hold a mix of numbers and letters?
Options
- ACharacter
- BFloat
- CInteger
- DAlphanumeric
How the community answered
(22 responses)- A9% (2)
- C5% (1)
- D86% (19)
Why each option
The alphanumeric data type is specifically designed to store a combination of both alphabetic characters (letters) and numeric digits (numbers), along with other symbols. This distinguishes it from data types that exclusively store numbers or single characters.
A character data type typically holds a single letter, number, or symbol, not a mix of numbers and letters in a string.
A float data type is used to store floating-point numbers, which are decimal numbers, and cannot directly store letters.
An integer data type is used to store whole numbers only and cannot store letters.
The alphanumeric data type, often implemented as a string or text data type in programming and databases, is capable of storing a mix of numbers, letters, and special characters. This allows for flexible representation of data that isn't purely numerical or purely textual, such as addresses or product codes.
Concept tested: Data types - alphanumeric
Source: https://learn.microsoft.com/en-us/sql/t-sql/data-types/char-and-varchar-transact-sql?view=sql-server-ver16
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