DATABASE SYSTEMS
13th Edition
ISBN: 9780357095607
Author: Coronel
Publisher: CENGAGE L
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Chapter 5, Problem 8RQ
Program Plan Intro
Attribute:
- Attribute is a property of an entity. It describes each entity in a
database and the name of the column in a table is representing an attribute. - Fields in a database table are also referred to as attributes of a database object.
Subtype:
- Subtype is one type of entity which inherits the attributes from other entity.
- The subtype relationship is a grouping of entities type in single entity that shares the common attributes or relationships which are different from other grouping.
- It is related to an entity supertype, where the supertype entity has common characteristics and the subtype entity has the unique characteristics of each entity subtype.
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Write the KeanStudent class. The UML diagram of the class is represented below:
KeanStudent
- fullName: String
- keanID: int
-keanEmailAddress: String
cellPhoneNumber: String
+ numberOfStudent: int
+ KeanStudent()
+ KeanStudent(fullName: String, keanID: int, keanEmailAddress: String, cellPhoneNumber: String)
+getFullName(): String
+setFullName(newFullName: String): void
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+getKeanEmailAddress(): String
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+ setCellPhoneNumber(newCellPhoneNumber: String): void
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fields or methods)
2. Implement a StudentTest class to test the class KeanStudent you just created.
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3. Add comments to your program (mark where data fields, constructors,…
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
Chapter 5 Solutions
DATABASE SYSTEMS
Ch. 5 - Prob. 1RQCh. 5 - What kinds of data would you store in an entity...Ch. 5 - Prob. 3RQCh. 5 - What is a subtype discriminator? Give an example...Ch. 5 - Prob. 5RQCh. 5 - What is a disjoint subtype? Give an example.Ch. 5 - What is the difference between partial...Ch. 5 - Prob. 8RQCh. 5 - According to the data model, is it required that...Ch. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - When implementing a 1:1 relationship, where should...Ch. 5 - What is time-variant data, and how would you deal...Ch. 5 - Prob. 17RQCh. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8CCh. 5 - Prob. 9CCh. 5 - Prob. 10C
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