Consider the following example.
Example:
A University name BITS has maintained the two relations to store the information about the faculty table and Teaches table. The faculty table stores the faculty_id (faculty_id has the unique id of faculty in the whole university) and faculty_name. The Teaches table stores the Course_id, Course_Name, and faculty_id. So the university admin department prints the faculty_name and Course_Name.
How many primary keys are there at the BITS University?
1
0
2
1
3
2
4
3
5
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