What does EXTRACT(EPOCH FROM order_date) represent?

The historical epoch name of the database.

The number of days since 1900-01-01.

The number of seconds elapsed since 1970-01-01 00:00:00 UTC.

The milliseconds of the current minute.

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QUESTION 01 OF 02

Extracting Date Components

Quiz for lesson: Extracting Date Components

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Which SQL expression returns the numeric day of the week (0 = Sunday, 6 = Saturday) in PostgreSQL?

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This interactive assessment is designed to test your understanding of Extracting Date Components. Whether you are a beginner looking to grasp the basics or an experienced professional aiming to refine your skills, quizzes are an excellent way to validate your knowledge and identify areas for improvement.

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Self-assess your current skill level.
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Reinforce memory and recall.