-Using the database depicted above,how many primary keys are in the database?

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Quizplus · Accepted Answer

A primary key is a unique identifier for each record in a database table, and it cannot be null. Without seeing the actual database schema, it's impossible to determine the exact number of primary keys. However, in a typical relational database, each table would have its own primary key, so the number of primary keys would equal the number of tables in the database.

-Using the Database Depicted Above,how Many Primary Keys Are in the Database