Question: Consider the relations specified in Problem and Exercise 5-37. Assume that the database has been implemented without denormalization. Further assume that the database is global

Consider the relations specified in Problem and Exercise 5-37. Assume that the database has been implemented without denormalization. Further assume that the database is global in scope and covers thousands of leagues, tens of thousands of teams, and hundreds of thousands of players. In order to accommodate this, a new relation has been added:
In addition, TEAM has an additional attribute TeamLeague. The following database operations are typical:
• Adding new players
• Adding new player contracts
• Updating player specialty codes
• Updating city populations
• Reporting players by team
• Reporting players by team and specialty
• Reporting players ordered by salary
• Reporting teams and their players by city.
a. Identify the foreign keys.
b. Specify the types of indexes you would recommend for this situation. Explain how you used the list of operations described above to arrive at your recommendation.

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