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Find a SQL query that computes a set difference and returns false positive(s) over a database with null values. Show the correctness of your answer

Find a SQL query that computes a set difference and returns false positive(s) over a database with null values. Show the correctness of your answer using an example.

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Answer Suppose we have two tables TableA and TableB with the following data TableA ID 1 2 3 4 5 6 7 ... blur-text-image

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