(Answered) Exercise 1write a check constraint that expresses the

Programming

Exercise 1

Write a CHECK constraint that expresses the following condition on attribute Rating in table Movies in Movie Database: "Any possible value of Rating is either a null value or a number in the interval from 0 to 10 inclusively".

Exercise 2

Write a CHECK constraint that expresses the following condition on records in table Laptop in Hardware Database: "If the screen is larger than 20, then the price is higher than 2000".

Exercise 3

Write a CHECK constraint that expresses the following condition on table Schedule in University Database: "Each course (occurring in this table) is offered at least two times". Hint: Use NOT EXISTS.

Exercise 4

Write a CHECK constraint that expresses the following condition on table StarsIn in Movie Database:

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