18.Consider the tables given below and answer the following questions.
i) Identify the field which should not be present in each of the following tables. (1)
ii)Name the primary key in each of the following tables. (1)
a) TeacherDetails
[TeacherID] [TeacherName ][Total Department][ DateofJoining] [ DateOfBirth]
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Answer:
Total department , this field should not be present.
Explanation:
ID, Name, joining date and date of birth of teacher is the relevant data required. There is no use of total department data.
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