Create a Crow's Foot ERD to include the following business rules for the ProdCo company:a. Each sales representative writes many invoices.b. invoice is written by one sales representative.c. Each sales representative is assigned to one department.d. Each department has many sales representative.e. Each customer can generate many invoicesd. Each invoice is generated by one customer

Create a Crow's Foot ERD to include the following business rules for the ProdCo company:a. Each sales representative writes many invoices.b. invoice is written by one sales representative.c. Each sales representative is assigned to one department.d. Each department has many sales representative.e. Each customer can generate many invoicesd. Each invoice is generated by one customer

Database Systems: Design, Implementation, & Management

12th Edition

ISBN:9781305627482

Author:Carlos Coronel, Steven Morris

Publisher:Carlos Coronel, Steven Morris

Chapter2: Data Models

Section: Chapter Questions

Problem 15P

See similar textbooks

Similar questions

Create a Crow’s Foot ERD to include the following business rules for the EaonCo company: Each sales representative writes many invoices. Each invoice is written by one sales representative. Each sales representative is assigned to one department. Each department has many sales representatives. Each customer can generate many invoices. Each invoice is generated by one customer.
Create a Crow’s Foot ERD to include the following business rules for the “ProdCo company” 1. Each sales representative writes many invoices. 2. Each invoice is written by one sales representative. 3. Each sales representative is assigned to one department. 4. Each department has many sales representatives. 5. Each customer can generate many invoices. 6. Each invoice is generated by one customer.
Consider the following information and use it to answer the questions that follow;A customer owning account 801 is transferring Ksh. 139,500 from his account to an account998 belonging to one of his business partners. The business partner (owner of account 998) isalso trying to settle a debt of raw materials supplied by one of his suppliers by issuing acheque of 150,000. Assume that cheques are debited (credited) immediately after beingdeposited.Assume the bank has a rule that minimum balances cannot go below zero. What anomaly might have occurred above? Why so?
Which one of the following is defined as" the requirement that actions of an entity may be traced uniquely to that entity"?
Given the following relation that stores details of employees and their projects: ProjectID EmployeeName EmployeeSalary 100-A Salim Housni 2000 100-A Taleb Maashani 1800 100-B Taleb Maashani 1800 200-A Salim Housni 2000 200-B Salim Housni 2000 200-C Salim Housni 1350 200-C Taleb Maashani 1800 200-D Salim Housni 1350 If the functional dependencies are consistent with the above relation, put TRUE. If they are not, put FALSE ProjectID --> EmployeeName (....) ProjectID --> EmployeeSalary (....) ProjectID , EmployeeName -->EmployeeSalary (....) EmployeeName --> EmployeeSalary (....) EmployeeSalary --> ProjectID (....) EmployeeSalary --> EmployeeName , ProjectID (....)
Which of the following statements are correct about EER model for this requirement? Book, Periodical, DVD, ReferenceItem, BorrowingItem, RegisteredUser, and TemporaryUser are set as entities. RegisteredUser and TemporaryUser can be generalized into a User entity. The specialization/generalization hierarchy for users is overlapping for disjoint constraint. Book, Periodicals, DVD, ReferenceItem, and BorrowingItem can be generalized into an Item entity
Suppose that the following are true:- all id column are primary keys in whichever table they are- the dept_id in course table is foreign key that is referencing the id column in the department table- the foreign keys stud_type_id, stud_cat_id in the student table are referencing the id columnsin the student_type and student_category tables respectively.- the coursecode and stud_id columns in the registration table are foreign keys in the courseand student tables respectively.1. Design an Entity Relationship Diagram for the system above.2. Write query that would return the names and contacts of all Local students.3. Write a query that would return names, contact and locations of all departments that has alocation text with Ave 3 as part of it. [hint: use the LIKE clause with “_” or “%”]4. What would be the result returned for the following query:SELECT first_name, last_name, student_type.name,student_category.nameFROM student, student_type, student_categoryWHERE stud_type_id =…
Make a relational diagram with the following data:1. Patient Entity:RUT (Primary Key): IntegerName: StringLast name: StringDate of Birth: DateEmail: StringAddress: StringTelephone numbers: StringPension System: String 2. Health Insurance Entity:Code (primary key): IntegerType: String 3. Medical entity:RUT (Primary Key): IntegerName: StringLast name: StringDate of Birth: DateSpecialties: StringYears of practice: Integer 4. Medical Specialty Entity:Code (primary key): IntegerSpecialty Name: String 5. Pharmaceutical company entity:Code (primary key): IntegerName: StringPhone number: String 6. Medication Entity:Business name (primary key): StringFormula: StringPharmaceutical company code (foreign key): Integer 7. Pharmacy Entity:Code (primary key): IntegerName: StringAddress: StringPhone number: String 8. Patient-Doctor Assignment Entity:Assignment ID (primary key): IntegerPatient RUT (foreign key): IntegerDoctor RUT (Foreign Key): IntegerStart date: DateEnd…
Each company operates four departments, and each department belongs to one company. Each department in part (a) employs one or more employees, and each employee works for one department. Each of the employees in part (b) may or may not have one or more dependents and each dependent belongs to one employee. Each employee in part (c) may or may not have an employment history, which includes his employments until the employee joined this enterprise as well as the employment history within the enterprise (after joining). Which of the following statements are true about the ER diagram (assuming it is a good design)? Department will be a weak entity. Employee will be a strong entity. There will be a one-to-many relationship between employee and dependent

Recommended textbooks for you

Database Systems: Design, Implementation, & Manag…

Computer Science

ISBN:

9781305627482

Author:

Carlos Coronel, Steven Morris

Publisher:

Cengage Learning

Database Systems: Design, Implementation, & Manag…

Computer Science

ISBN:

9781285196145

Author:

Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel

Publisher:

Cengage Learning

Database Systems: Design, Implementation, & Manag…

Computer Science

ISBN:

9781305627482

Author:

Carlos Coronel, Steven Morris

Publisher:

Cengage Learning

Database Systems: Design, Implementation, & Manag…

Computer Science

ISBN:

9781285196145

Author:

Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS