A column is being used to store strings of variable lengths. Performance is a concern, so the column needs to use as little space as possible. Which of the following data types best meets these…

The correct answer is C. varchar. VARCHAR is a data type optimized for storing variable-length strings. It only uses the necessary space for each value, making it more efficient in terms of storage compared to CHAR, which allocates a fixed amount of space regardless of the string's actual length.

Data Concepts and Environments

Question

A column is being used to store strings of variable lengths. Performance is a concern, so the column needs to use as little space as possible. Which of the following data types best meets these requirements?

Options

Achar
Bnchar
Cvarchar
Dnvarchar

How the community answered

(44 responses)

A
2% (1)
C
93% (41)
D
5% (2)

Explanation

VARCHAR is a data type optimized for storing variable-length strings. It only uses the necessary space for each value, making it more efficient in terms of storage compared to CHAR, which allocates a fixed amount of space regardless of the string's actual length.

Topics

#Database data types#Storage optimization#Variable-length strings

Community Discussion

No community discussion yet for this question.

Full DA0-001 Practice