EBK CONCEPTS OF DATABASE MANAGEMENT
8th Edition
ISBN: 8220100706004
Author: Last
Publisher: Cengage Learning US
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Question
Chapter 6, Problem 4CATC
To determine
To expand the
CAT is required to send invoice to each participant. The details of invoice should be classes in which participant is enrolled, total fee for the adventure classes, name and address of participant.
Given information:
Following database design was developed for exercise 3:
Explanation:
Based on user view following Invoice table should be generated:
Invoice (InvoiceNum, ClassNum, TotalFees, LastName, FirstName, Address)
In the above relation attributes LastName, FirstName and Address are already present in Participant table. Thus, only by including the PNumber as foreign key in Invoice table one should be able to get last name, first name and address of the participant. Therefore, Invoice relations should have the following structure:
Invoice (InvoiceNum, ClassNum, TotalFees, PNumber)
Thus, DBDL for this user view will be as follows:
Cumulative design after this user view will be as follows:
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MGMT SS STATS, an umbrella body that facilitates and serves various Social SecurityOrganizations/Departments within the Caribbean territories, stoodpoised to meet the needs of its stakeholders by launching an onlinedatabase at www.SSDCI.gov. The database will provide membersand the public access to the complete set of services that can (also)be initiated face-to-face, and it will provide managed, private, secure access to a repository ofpublic and/or personal information. Ideally, the database will have basic details of pensionplans recorded in the registry, member plan statistics, and cash inflows and outflows frompension funds.For example, insured persons accumulate contributions. Records for these persons will includeinformation on the insured persons able to acquire various benefits once work is interrupteddue to sickness, death, retirement, and maternity or employment injury. They will also includeinformation on pensions such as invalidity, disability, and survivors that stem from…
(c) Consider the following set of processes:
Process ID
Arrival Time Priority
Burst Time
A
2
3
100
B
6
C
10
1 (highest)
2
40
80
D
16
4 (lowest)
20
(3c) In the following resource allocation graph, is the state a deadlocked one? If so
which ones are deadlocked? (3 points)
Resource allocation graph. R₁ = Resource, P = process.
R1
R3
R3
7
Chapter 6 Solutions
EBK CONCEPTS OF DATABASE MANAGEMENT
Ch. 6 - Prob. 1RQCh. 6 - Prob. 2RQCh. 6 - Prob. 3RQCh. 6 - Prob. 4RQCh. 6 - Prob. 5RQCh. 6 - Prob. 6RQCh. 6 - Prob. 7RQCh. 6 - Prob. 8RQCh. 6 - Prob. 9RQCh. 6 - Prob. 10RQ
Ch. 6 - Prob. 11RQCh. 6 - Prob. 12RQCh. 6 - Prob. 13RQCh. 6 - Prob. 14RQCh. 6 - Prob. 15RQCh. 6 - Prob. 16RQCh. 6 - Prob. 19RQCh. 6 - Prob. 1TDECh. 6 - Prob. 2TDECh. 6 - Prob. 3TDECh. 6 - Prob. 4TDECh. 6 - Prob. 5TDECh. 6 - Prob. 6TDECh. 6 - Prob. 1CATCCh. 6 - Prob. 2CATCCh. 6 - Prob. 3CATCCh. 6 - Prob. 4CATCCh. 6 - Prob. 1SCGCCh. 6 - Prob. 2SCGCCh. 6 - Prob. 3SCGC
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