Question: Suppose B(R) = B(S) = 10,000, and M = 1000. Calculate the disk I/O cost of a nested-loop join

Suppose B(R) = B(S) = 10,000, and M = 1000. Calculate

Suppose B(R) = B(S) = 10,000, and M = 1000. Calculate the disk I/O cost of a nested-loop join

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

Exercise 15.3.2: Suppose B(R) - B(S) the disk I/O cost of a nested-loop join. 10,000, and M 1000. Calculate

Q:

Consider the following relations R(A, B), S(C, D), T (E, F ) with S = 1 10 (10 tuples fit on each page). The sizes V (R, B) = 50 V (S, D) = 25, 000 V (T , F ) = 3 and value distributions are: T (R) =...

Q:

Tables R(a, b) S(a, c, d) will be Joined over the attributes a. Catalog information is as follows: NPages (R) = M =2000 pages, 80 records per page NPages (S)= N = 300 pages, 40 records per page No...

Q:

For the query TA,B,C,D(R A-C S), assume the following: R is 10 pages; each R tuple is 300 bytes. S is 100 pages; each S tuple is 500 bytes. The combined size of attributes A, B, C and D is 450 bytes....

Q:

I Question 2: We discussed the merge-join algorithm for an equi-join r Nr. A=s.B s, when both relations are sorted in ch12.pptx. The pseudo code is shown in the slide 12.32 in ch12.pptx and discussed...

Q:

4. Relation R has r tuples, of which 100 fit in one block. Relation S has s tuples, of which 200 fit in one block. There are M memory blocks available to take the nested-loop join of R and S. As a...

Q:

Let A, B be sets. Define: (a) the Cartesian product (A B) (b) the set of relations R between A and B (c) the identity relation A on the set A [3 marks] Suppose S, T are relations between A and B, and...

Q:

Please quality check my solutions for this advanced heat transfer problem. Show all work. Thank you. All original documents are located at the bottom. 3.9 COMPACT HEAT EXCHANGERS 3.9.10-1 3.9.10...

Q:

This problem will explore different join implementations and the associated IO costs for different models. Let R ( a , b ) , S ( b , c ) , and T ( c , d ) be tables. For the purpose of this question,...

Q:

Suppose you have 2 relations, R(A,B) and S(B,C), with the following characteristics: The size of one disk block is 1000 bytes. Attributes A, B are of length 10 bytes. Attribute C is of length 180...

Q:

Explain the concept of strategic groups. What are the performance implications?

Q:

2. Huffman Coding. a. What is a prefix code? How can one build a prefix code? b. What is a Huffiman code? c. Consider the following text: "a fast runner need never be afraid of the dark". Build a...

Q:

refers to brying and selling currencies to be delivered at a future date. The currency swap market b . The forward market c . The defaule swap market d . The options market

Q:

PROBLEM #4 The director of a state agency believes that the average starting salary for clerical employees in the state is less than $30,000 per year. To test her hypothesis, she has collected a...

Q:

If the tax rate is 40 percent, compute the beforetax real interest rate and the after-tax real interest rate in each of the following cases. a. The nominal interest rate is 10 percent and the...

Q:

Assume that the reserve requirement is 20%. Also assume that banks do not hold excess reserves and there is no cash held by the public. The Federal Reserve decides that it wants to expand the money...

Q:

It is often suggested that the Federal Reserve try to achieve zero inflation. If we assume that velocity is constant, does this zero-inflation goal require that the rate of money growth equal zero?...