Question: Suppose a relation is stored in a B+-tree file organization. Suppose secondary indices store record identifiers that are pointers to records on disk. a. What

Suppose a relation is stored in a B+-tree file organization. Suppose secondary indices store record identifiers that are pointers to records on disk.

a. What would be the effect on the secondary indices if a node split happened in the file organization?

b. What would be the cost of updating all affected records in a secondary index?

c. How does using the search key of the file organization as a logical record identifier solve this problem?

d. What is the extra cost due to the use of such logical record identifiers?

Step by Step Solution

★★★★★

3.15 Rating (157 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

a When a leaf page is split in a Btree file organization a number of records are moved to a new page ... View full answer

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 Database System Concepts Questions!

Q:

What would be the effect on cost and performance if tape storage were to achieve the same areal density as disk storage? (Areal density is the number of gigabits per square inch.)

Q:

In a disk jukebox, what would be the effect of having more open files than the number of drives in the jukebox?

Q:

Presented below is information related to equipment owned by Suarez Company on December 31, 2014. |Cost|$9,180,000 |Accumulated depreciation to date|$1,020,000 |Expected future net cash...

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:

Lesson 12 Quiz (Show/Explain all Work) IST 230 Relations on Sets, Databases 1. Let A = {0, 1, 2, 3, 4, 5, 6, 7, 8} and B = {1, 2, 3, 4, 5, 6, 7, 8}. Now let R be a binary relation R from A to B such...

Q:

PLEASE ANSWER A B AND C [ 4 0 % ] Consider the following SQL that creates a table R with 2 columns and 2 indexes ( a primary key on A , a secondary B + tree index on B . ) CREATE TABLE R ( A INT NOT...

Q:

[ 4 0 % ] Consider the following SQL that creates a table R with 2 columns and 2 indexes ( a primary key on A , a secondary B + tree index on B . ) CREATE TABLE R ( A INT NOT NULL PRIMARY KEY, B INT...

Q:

Can someone help me with these questions please! Q1. Drugwarehouse.com has offered you a free life-time supply of prescription drugs (no questions asked) if you design its database schema. Given the...

Q:

Database Administration CHAPTER OBJECTIVES I Understand the need for and importance of database I ttno'illI the meaning of ACID transaction administralin - Learn the tour 1992 ANSI standard isolation...

Q:

Database Administration CHAPTER OBJECTIVES I Understand the need for and importance of database I ttno'illI the meaning of ACID transaction administralin - Learn the tour 1992 ANSI standard isolation...

Q:

Net investment in operating capital is Rs 5000 and net operating profit after taxes is Rs 8000 then free cash flow would be A Rs 13, 000.00 B - Rs 3, 000.00 C Rs 3, 000.00 D - Rs 13, 000.00

Q:

When heated in ethanol, this alkyl halide gives two substitution and two elimination products. Show the structures of these products and the mechanism for theirformation. Br ELOH

Q:

The primitive right gives current stockholders the right to purchase on a pro basis any news shares it should by the firm this helps protect current stock old is against both solution of control and...

Q:

4. A DVCs population is growing 2 percent per year and output is growing 3 percent per year. If the government wants to improve living standards over coming decades, which of the following would...

Q:

Show that n i=1 i/2 i

Q:

Show that log b f (n) is (log f (n)) if b > 1 is a constant.

Q:

In Section 5.2 we prove by induction that the number of lines printed by a call to drawInterval(c) is 2 c 1. Another interesting question is how many dashes are printed during that process. Prove by...

Q:

Question Help You just purchased a share of SPCC for $95. You expect to receive a dividend of $7 in one year. If you expect the price after the dividend is paid to be $111, what toal retum will you...

Q:

Premier, Incorporated, has an odd dividend policy. The company has just paid a dividend of $ 8 . 2 5 per share and has announced that it will increase the dividend by $ 6 . 2 5 per share for each of...

Q:

Problem 5-26 (a) (LO. 1, 2, 3) On September 30, Marsh Corporation, a calendar year taxpayer, sold a parcel of land (basis of $320,000) for an $800,000 note. The note is payable in four installments,...