An analyst wants to extract information about calves younger than six weeks from a database containing data on calves born within the past year. Which of the following data operations should the…

The correct answer is A. Filtering. Filtering is the correct operation to extract a specific subset of records based on a condition - here, calves where 'age_in_weeks < 6'. Filtering narrows the result set without changing the data. Indexing improves query performance but doesn't extract a subset on its own…

Data Concepts and Environments

Question

An analyst wants to extract information about calves younger than six weeks from a database containing data on calves born within the past year. Which of the following data operations should the analyst use?

Options

AFiltering
BIndexing
CAggregation
DSorting

How the community answered

(31 responses)

A
87% (27)
B
3% (1)
C
6% (2)
D
3% (1)

Explanation

Filtering is the correct operation to extract a specific subset of records based on a condition - here, calves where 'age_in_weeks < 6'. Filtering narrows the result set without changing the data. Indexing improves query performance but doesn't extract a subset on its own. Aggregation summarizes data (e.g., COUNT, AVG). Sorting reorders records but returns all of them. Only filtering directly retrieves just the rows that meet the age criterion.

Topics

#Filtering#Data Operations#Database Querying

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