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Use join, intersect, union, or except for the following problems: 1.Display the employee number, name, and his ratings for the different rating periods. 2. Display

Use join, intersect, union, or except for the following problems: 1.Display the employee number, name, and his ratings for the different rating periods. 2. Display the employee number, name, and address of employees who got 90 and above in any of the rating periods.

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