database fundementals: GIVEN: Participant (PNumber, LastName, FirstName, Address, City, State, PostalCode, PhoneNumber, DOB) SK-->FirstName AK-->PhoneNumber Class(ClassNum, Description, NumOfPerson, Fee) SK-->Description ClassParticipant(PNumber, ClassNum, DataOfClass) FK-->PNumber-->Participant FK-->ClassNum-->Class Expand the database design so it will support the following report: Colonial Adventure Tours needs to send an invoice to each participant, listing the classes in which the participant is enrolled as well as the total fees for the classes. The invoice should include the participant’s full name and address. Answer in both DBDL and E-R diagram

Q: Explain the ways subclasses can be created that are not subtypes.

A: Answer is given below .

Q: Develop a python project for the library management system. the system must be included two-mode &…

A: The solution to this problem is very long. I have shared all the codes below that are asked in the…

Q: The Expert pattern essentially is saying "assign the responsibility to fulfill a request to the…

A: The Expert pattern, also known as the Information Expert pattern, is one of the design patterns…

Q: Veterinarian Office Case: Part 4 The veterinarian office created a database to keep track of owner…

A: 1. Option B is the correct code because it will add the row and along with that the message of…

Q: Case Study: National Football League (NFL) Suppose you are given the following requirements for a…

A: Objects (Entities) and Attributes:TeamsNameCityCoachCaptainPlayersNamePositionSkill LevelInjury…

Q: Define class name? Define attributes name and color

A: Class name The class name is used as the name for the class. It is also used as the name for the…

Q: The attributes field of objects is a potential storage location for data. The qualities of the class…

A:

Q: True or False? An aggregation is a special type of association in which objects are assembled or…

A: An association that specifies a whole-and-part relationship is referred to as an aggregation. When…

Q: Create a relational database design for the following data model For the image

A: Rules to convert Data Model Diagram into Relational Database: 1. Each entity in Data Model become a…

Q: Delegation represents:   a. White-box reuse    b. Has-a relationship   c. Black-box reuse…

A: Delegation means that you use an object of another class as an instance variable, and forward…

Q: Veterinarian Office Case: Part 5 The veterinarian office created a database to keep track of owner…

A: 1. Answer : Option a. ALTER TABLE OWNER ADD PRIMARY KEY(OWNER_ID) ADD CHECK(OWNER_STATE='NV') 2.…

Q: onal Schema: (keys undenined). Student (sid: intyer, snume Stniny, major ístriny, age:inteyer)…

A: Student (Sid: integer, Sname: string, major: string, age: integer) Takes (Sid, Cid) Class (Cid:…

Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.