Which of these take more space?
Variable length columns, Fixed length columns
Variable length columns, Fixed length columns
A. variable length
B. same
C. fixed length
D. indeterminate
Answer: Option C
Solution(By Examveda Team)
Variable length: Variable-length columns store data in a flexible manner, allowing the storage of data of varying lengths. They only consume as much space as needed for the actual data stored. Examples include VARCHAR and TEXT data types. Variable-length columns typically take less space because they only use as much storage as necessary to accommodate the data.Fixed length: Fixed-length columns allocate a fixed amount of storage space for each row, regardless of the actual length of the data stored. Examples include CHAR and BINARY data types. Fixed-length columns consume the same amount of space for each row, even if the data stored in them is shorter than the allocated space. Therefore, fixed-length columns generally take more space compared to variable-length columns, especially if the actual data lengths vary widely.
Same: This option is incorrect. Fixed-length columns typically take more space compared to variable-length columns due to the allocation of a fixed amount of storage space for each row.
Indeterminate: This option implies uncertainty or unpredictability, but in this context, it is clear that fixed-length columns generally take more space than variable-length columns.
Therefore, the correct answer is Option C: fixed length, as fixed-length columns typically take more space compared to variable-length columns.
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