Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Chapter 8, Problem 3PE
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SQL schema definition
- “Color” and “DriveTrainType” are pre-defined data types and use the table inheritance.
- “Vehicle” relation is considered.
create type Vehicle(vehicle_id integer, license_number char(30), manufacturer char(30), model char(30), purchase_date char(30), color Color)
create table vehicle of type Vehicle
- “Truck” relation as child of “vehicle” relation is considered.
create table truck (cargo_capacity integer) under vehicle
- “sportsCar” relation as child of “vehicle” relation is considered...
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R3x = input('Enter the value for R3 in kohms: ');
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fprintf('===============================================\n');
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E2 = input('Enter the value of E2 in Volts: ');
E3 = input('Enter the value of E3 in Volts: ');
fprintf('===============================================\n');
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Suppose that the two Rank methods below are added to the Skip List class on Blackboard.
public int Rank(T item)
Returns the rank of the given item.
public T Rank(int i)
Returns the item with the given rank i.
Requirements
1. Describe in a separate Design Document what additional data is needed and how that data is used to
support an expected time complexity of O(log n) for each of the Rank methods. Show as well that the
methods Insert and Remove can efficiently maintain this data as items are inserted and removed. (7
marks)
2. Re-implement the methods Insert and Remove of the Skip List class to maintain the augmented data in
expected O(log n) time. Using the Contains method, ensure that added items are distinct. (6 marks)
3. Implement the two Rank methods. (8 marks)
4. Test your new methods thoroughly. Include your test cases and results in a Test Document. (4 marks)
Why do we need official standards for copper cable and fiber-optic cable? What happens without the standard?
Chapter 8 Solutions
Database System Concepts
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