DA0-001 · Question #55
Given the table below: Which of the following variable types BEST describes the "Year" column?
The correct answer is B. Date. Although "Year" values consist of numbers, they fundamentally represent a temporal component and are best classified as a Date variable type, which allows for specific temporal operations and context.
Question
Given the table below:
Which of the following variable types BEST describes the “Year” column?
Exhibit
Options
- ANumeric
- BDate
- CAlphanumeric
- DText
How the community answered
(20 responses)- A5% (1)
- B90% (18)
- C5% (1)
Why each option
Although "Year" values consist of numbers, they fundamentally represent a temporal component and are best classified as a Date variable type, which allows for specific temporal operations and context.
While a year is composed of digits, classifying it purely as "Numeric" loses the critical temporal context and prevents date-specific functions from being applied directly.
Even though years are expressed numerically, a "Year" column represents a specific point in time, making "Date" the most appropriate variable type as it captures the temporal nature and allows for date-specific operations and interpretations.
Alphanumeric implies a mix of letters and numbers, or a string that might contain both, which isn't the primary characteristic of a column solely containing year values.
Text is a generic string type; while a year can be stored as text, it's not the BEST description as it sacrifices the inherent temporal meaning and potential for date-based calculations.
Concept tested: Data types - temporal data
Source: https://learn.microsoft.com/en-us/sql/t-sql/data-types/date-and-time-data-types-transact-sql?view=sql-server-ver16
Topics
Community Discussion
No community discussion yet for this question.
