QuestionQuestion

Problem 1. Please write ONE SQL statement for each of the following tasks using tables created in Problem 1.

Task 1: Return the total number of reviews
Task 2: Return all reviews submitted after 2016-5-1.
Task 3: Return product names under the category TV.
Task 4: Return the product name and average score.
Task 5: Return the names of product under the category TV and with average rating above 4.0
Task 6: Return names of products under the same category as Apple iPhone 6 Plus
Task 7: Return the name of user whose minimal review score is at least 4.5.
Task 8: Return the name of the laptop with the lowest weight (Hint: using subquery in where clause)

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-- Task 1: Return the total number of reviews

select count(*) from review;...

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