What is the difference between COUNT, COUNT DISTINCT, and COUNT(*) in SQL? When will these three commands

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What is the difference between COUNT, COUNT DISTINCT, and COUNT(*) in SQL? When will these three commands generate the same and different results?

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Modern Database Management

ISBN: 978-0133544619

12th edition

Authors: Jeff Hoffer, Ramesh Venkataraman, Heikki Topi

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Question Posted: Sep 21, 2024 09:00 AM

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What is the difference between COUNT, COUNT DISTINCT, and COUNT(*) in SQL? When will these three commands generate the same and different results?
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What is the difference between COUNT, COUNT DISTINCT, and COUNT(*) in SQL? When will these three commands

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Modern Database Management

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