Which of the Following Statements About Columnar Databases A), B)

question 15

Multiple Choice

Which of the following statements about columnar databases a) , b) or c) is false?

• A) A columnar database is similar to a relational database, but it stores unstructured data in columns rather than rows.
• B) Because all of a column's elements are stored together, selecting all the data for a given column is more efficient.
• C) Consider our authors table in the books database: first last
• Id
• 1 Paul Deitel
• 2 Harvey Deitel
• 3 Abbey Deitel
• 4 Dan Quirk
• 5 Alexander Wald
• If we consider each row as a Python tuple, the rows would be represented as (1, 'Paul', 'Deitel'), (2, 'Harvey', 'Deitel'), etc. In a columnar database, all the values for a given column would be stored together, as in (1, 2, 3, 4, 5), ('Paul', 'Harvey', 'Abbey', 'Dan', 'Alexander') and ('Deitel', 'Deitel', 'Deitel', 'Quirk', 'Wald').
• D) All of the above statements are true.

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Definitions:

Collect Information

The process of gathering data or details from various sources for analysis or use.

Organize Ideas

The process of arranging thoughts or concepts systematically to achieve clarity and improve communication.

Question-And-Answer

A format typically used for information exchange, where questions are posed and answers are provided.

Hostile Audience

Describes an audience that is initially unreceptive, skeptical, or antagonistic towards the speaker or message.