Question: describe the following relational operators: Union, Project, Intersect and Join. Please p rovide a real-world application example for each of these operators.

describe the following relational operators: Union, Project, Intersect and Join. Please provide a real-world application example for each of these operators.

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describe the following relational operators: Union, Project, Intersect and Join. Please p rovide a real-world application example for each of these operators.

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