Explain the difference between Hash indexes and B+-tree indexes. In particular, discuss how equality and range searches

Question:

Explain the difference between Hash indexes and B+-tree indexes. In particular, discuss how equality and range searches work, using an example.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Database management systems

ISBN: 978-0072465631

3rd edition

Authors: Raghu Ramakrishan, Johannes Gehrke, Scott Selikoff

See More Books

Question Posted: Jun 27, 2016 06:04 AM

See More Questions

Explain the difference between the lookup table in cells A3:E4 of the Grades worksheet and the lookup table in cells A6:E7 in the same worksheet. 1 Grading Schemes: 3 900 800 700 600 700 800 900
Explain the difference between functional dependencies that arise from equations and those that do not.
Explain the difference between a what-if analysis and Goal Seek by giving an example based on the worksheet shown in Question 11. 1Make 2 Ford 3 GM 4 Lexus 5 Toyota 6 Honda Price $ 16,929 13,999...
As an HR director for IMF Plastics Manufacturing, you receive a phone call about communicating changes made by the company to provide additional shifts.As soon as the call ends, you begin the process...
1. To what extent do you believe the factors contributing to the airlines bankruptcy were beyond the control of management? To what extent do you believe past airline mismanagement may have...
Hand washing versus hand rubbing. As an alternative to hand washing, some hospitals allow health workers to rub their hands with an alcohol-based antiseptic. The British Medical Journal (Aug. 17,...
A chemical product was manufactured at two-week intervals, and after a period of storage the level of available chlorine, which is known to decline with time, was measured in cartons of the product...
The certified public accounting partnership of James, Guinn, and Head prepared a certified audit report of four corporations, known as the Paschal Enterprises, with knowledge that their report would...
Dwight Donovan, the president of Benson Enterprises, is considering two investment opportunities. Because of limited resources, he will be able to invest in only one of them. Project A is to purchase...
Refer to the data of Exercise 11.7. a. Calculate a 95% confidence interval for 0. b. What is the interpretation of H0: 0 = 0 for the problem in Exercise 11.7? c. Test the hypotheses H0: 0 = 0 versus...
Consider a relation stored as a randomly ordered file for which the only index is an unclustered index on a field called sal. If you want to retrieve all records with sal > 20, is using the index...
If you were about to create an index on a relation, what considerations would guide your choice? Discuss: 1. The choice of primary index. 2. Clustered versus unclustered indexes. 3. Hash versus tree...
In your new position as supervisor of product introduction, you have to decide on a pricing strategy for a talking doll specialty product with the following cost structure: Variable costs per unit...
Use the following data to calculate the requested ratios for Tristar Transport and Logistic Services. Briefly analyse each answer. 1) Days accounts receivable. 2) Inventory turnover. 3) Debt/equity....
The following partial information is contained in the variance analysis received from the Western Plant of Eastlawn Company. All plants at Eastlawn apply overhead on the basis of direct labor-hours....
The Hudson Company is the sponsor of an IRS qualified defined benefit pension plan for a single employer. The pension plan calculates pension benefits based on factors like age, years of service, and...
Find the area enclosed by one loop of the four-leaved rose r = cos(20).
Landen Corporation uses a job-order costing system. At the beginning of the year, the company made the following estimates: Direct labor-hours required to support estimated production 65,000...
From Figure 12-18, estimate (a) The vapor pressure of C 6 H 5 NH 2 at 100C (b) The normal boiling point of C 6 H 5 CH 3 . Figure 12-18 800- 760- Pressure, mmHg 700- 600- 500- 400- 300- 200- 100- 20...
For a nonzero constant a, find the intercepts of the graph of (x 2 + y 2 ) 2 = a 2 (x 2 - y 2 ). Then test for symmetry with respect to the x-axis, the y-axis, and the origin.
Let R1, R2, Rn be a decomposition of schema U. Let u (U) be a relation, and let r i = IIRI (u). Show that u r1 1 r2 1 1 rn
Show that the decomposition in exercise is not a dependency-preserving decomposition.
Show that it is possible to ensure that a dependency-preserving decomposition into 3NF is a loss less-join decomposition by guaranteeing that at least one schema contains a candidate key for the...
How do warehouses and distribution centers differ? What is cross-docking and why might a company choose to cross-dock a product? What kinds of products can be delivered electronically? What kinds...
Strawberry Inc. has historically been an all-equity firm. The analyst expects EBIT to be $1.5B in perpetuity starting one year from now. The cost of equity for the company is 11.5% and the tax rate...
Guzman company received a 60- day, 5 % note for 54,000 dated July 12 from a customer on account. Determine the due date on note. Determine the maturity value of the note and journalize the entry of...

Explain the difference between Hash indexes and B+-tree indexes. In particular, discuss how equality and range searches

Question:

Step by Step Answer:

A Hash index is constructed by using a hashing function that quickly maps an search key value to a specific location in an arraylike list of elements ...View the full answer

Database management systems

Students also viewed these Computer Sciences questions