Consider the following instance of the Students relation, sorted by gpa For the

Question

Consider the following instance of the Students relation, sorted by gpa For the purposes of this question, assume that these tuples are stored in a sorted file in the order shown. Each page can store up to three data records. So the first three tuples are on page 1, the fourth is on page 2 etc. Explain what the data entries in each of the following indexes contain. If the order of entries is significant, say so and explain why. For definition of terms, refer to the text. An index on gpa using Alternative (1). A clustered index on gpa using Alternative (2). An unclustered index on name using Alternative (3). Consider a delete operation specified using an equality condition on a key. Assuming that no record qualifies, what is the cost for the three file organizations: heap file, sorted file, unclustered hash index? Present your analysis using the same parameters as in the lectures: B = number of data pages R = number of records per page D = time to read or write disk page

Explanation / Answer

we notice as the age increses the gpa of the candidates increazes, so basically it is directly proportional to the the age.

we notice as the age increses the gpa of the candidates increazes, so basically it is directly proportional to the the age.

we notice as the age increses the gpa of the candidates increazes, so basically it is directly proportional to the the age.

we notice as the age increses the gpa of the candidates increazes, so basically it is directly proportional to the the age.

we notice as the age increses the gpa of the candidates increazes, so basically it is directly proportional to the the age.

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