Consider the E-R diagram for a university database as shown in Figure 1. What is NOT true about instructor and student? (a) An instructor can advise more than one students. (b) A student can be advised by more than one instructors. (c) A student may not have an instructor as advisor. (d) none of the above.

Q: Create an E-R model for the following scenario. Show entity names, primary keys, attributes for each…

A: We need to create ER diagram for above case studies See below step for diagram.

Q: Design a Relational Database by Mapping the following Entity-Relationship Diagram (ERD) into…

A:

Q: Draw a customer-input screen for a utility company. What information should be captured? In what…

A: Solution ::   Some involve advances in basic hidden (under) display and interface technologies…

Q: Based on Figure 1.0, draw a DataBase Model of your choice then explain how this model relate to…

A: Below i have shown:

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A: Enhanced ER model: (EER) diagrams are advanced versions of ER diagram.It is used in designing…

Q: The crow's foot in a diagram a.) is only used to show N:M relationships. b.) shows the relationship…

A: Crow's foot Diagram contains crow foot notation in which the cardinality and modality of the…

Q: Create a database whose tables are at least in 2NF, showing the dependency diagrams for each table.

A: Dependency diagram for database table The database table of Table1 is                    Table1…

Q: A professor teaches many courses in a university. However, some professors who are the…

A: Here the entity we have are Professor Course A professor can teach zero or many course. Therefore…

Q: Draw relational database schema as asked Q4. Consider the EER diagram for car dealer database in…

A:

Q: Consider the relational database of Figure 1. What are the appropriate primary keys? employee…

A: Given query is  employee (person_name, street, city) works (person_name, company_name, salary)…

Q: Consider the E-R diagram for a university database as shown in Figure 1. What is NOT true about…

A: Each instructor must have to be associated with atleast one associated department. Hence, correct…

Q: Consider the E-R diagram for a university database as shown in Figure 1. What does deparment…

A: Entity In the Entity-Relationship diagram, department represents entity. An entity is an object in…

Q: (i) Draw a complete ER diagram for the database in Figure 1. (ii) Explain the steps should be done…

A: We have the Given Database: (i) We need to draw the ER Diagram for the Database given. (ii) Explain…

Q: Consider the following Scenario. Design a database for an airline. The database must keep track of…

A: The ask is to design a database for an airline, keeping track of customers and their reservations,…

Q: Consider the E-R diagram for a university database as shown in Figure 1. Detect the strong…

A: Strong entity: It contains enough attributes to uniquely identify all its entities. The strong…

Q: Create an ER model related to the following entities and relationships: Department, Student,…

A: The Diagram of the ER model is attached here with the answer. Please refer to step 2.

Q: Q3/ Consider the relational database of Figure 1. What are the appropriate primary keys? employee…

A: Answer Here most appropriately in relation employee person_name can be set s a primary key, because…

Q: Draw the ER-Diagram for the following database schema. Specify the types of relationships in detail…

A: Given, Customers {Customer_ID, C_Name} Employees {Employee_ID, E_Name} Orders        { Order_No,…

Q: Consider the E-R diagram for a university database as shown in Figure 1. Detect the weak entity…

A: Explanation: Weak entity is an entity that is depend on strong entity to ensure the existence of…

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A: ER Diagram: ER diagram is the non-technical design approach operates on conceptual level, focused on…

Q: Draw the ER-Diagram for the following database schema. Specify the types of relationships in details…

A: Following is the diagram :

Q: Figure 2 shows an ER schema for a database that may be used to keep track of Pizza ordering system.…

A: Answer in step2 Note--since in E-R diagram cannot show foreign key so we are giving possible foreign…

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A: ER Diagram: The entity relationship diagram represents the various entities and the relationship…

Q: ERD (Entity relationship diagram)

A: Given :- An ERD (Entity relationship diagram) is given in the above given question   Need to write…

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Q: Figure 3 shows an ER schema for a database that may be used to keep track of part of an University…

A: STUDENT(STUDENT_ID, HOBBY,DOB,STUDENT_NAME, ADDRESS, COURSE_ID) LECTUREE(LECTURER_ID, LECTURER_NAME)…

Q: Draw a entity relationship diagram (ERD) for the following situation: The State of Georgia is…

A: Answer :

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A: Intro in the database, we have a concept of locks where when we try to update a record we need to…

Q: An entity-relationship diagram (ERD) is a specialized graphic that illustrates the relationships…

A: The solution for the above given question is given below:

Q: Draw a DataBase Model of your choice then explain how this model relate to every entities

A: Given: Using the figure below. Draw a DataBase Model of your choice then explain how this model…

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A: Answer is given below-

Q: Create a database whose tables are at least in 3NF, showing the dependency diagrams for each table.

A: Functional Dependency:   A functional dependency is a term used in the database which defines the…

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A: Constraints are the laws that a table's data columns must follow. These are used to restrict the…

Q: the the number name the number the birth the Date name name number Phone section Works N the…

A: In this question, we have 4 entities that are Section, the employee, son, and project. Each entity…

Q: just answer true/false. a] There are three main components of ER model which are an entity, an…

A: Defined the given statements true or false

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A: “grade” represents an entity associated with the relationship “takes” in the given…

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A: Actually, database is a used to stores and maintains the data.

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A: Primary key In the diagram, the primary key for class room is building and room_number. A primary…

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A: In the School system. there are many entities like Admin Teacher Student Subject Division Class…

Q: Figure 1 shows an ER schema for a database that may be used to keep track of part of a Hospital…

A: Entity-set schema: DOCTORS(Name, Address, Specialization, Qualification) PATIENTS(Type, Details)…

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A: Step 1: STUDENT (SSN, Name, Major_Department, Minor_Department, Bdate) DEPARTMENT (DepartmentName,…

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A: Entity: Entity is the basic block for building the data collected about person, place, event, or…

Q: Convert each ERD that follows into a relational database schema diagram using the above schema…

A: In answer A there are 3 tables in which two tables are entities and one is a relationship table…

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A: You have asked multiple questions so we will answer the first one for you. If you want any other…

Q: An entity student has a derived attribute "age". When mapping ER Diagram to schema, you place…

A: We have an entity 'student' has a derived attribute "age". When mapping ER Diagram to schema, where…

Q: What are multivalued attributes, and how can they be handled within the database design? Questions…

A: What are multivalued attributes, and how can they be handled within the database design?

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A: Answer : Three modern methods that helps to harden the database environment: 1) Password complexity…

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.