Database Systems: Design, Implementation, & Management
11th Edition
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
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Textbook Question
Chapter 3, Problem 4P
Describe the type(s) of relationship(s) between STORE and REGION.
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Requirement analysis:
Course evaluation must have a student, the students relation contains a unique student id, full name for each student, email address, phone number, address and date of birth.
For each course, the courses contain course id, course name and credit.
Each student can take many courses.
For each Instructor, the instructors contain id, name and email.
Each instructor can instruct many courses.
For each section, the sections contain section id, year and semester.
Students are able to evaluate the current courses.
ER-diagram: Please complete the ER diagram using Microsoft word.
Instructor
ID
Full name
Email
Student
ID
Full name
Email
Phone number
Address
Date of birth
Course
ID
Course title
Description
Credit
Section
ID
Year
Semester
Please Complete the diagram on MS word.
Employee:
(EID, Name, City, Address)
Department:
(DID, Department_Name, City, budget)
Works_IN:
(EID, DID, Annual_Salary, Start_Date)
Manages:
(ManagerID, DepartmentID, rank)
DID and EID in Works_IN relation are foreign keys referencing the primary keys of the Department and Employee
relations respectively. Manager_ID and Department_ID in the Manages relation are foreign keys referencing the
primary keys of the Employee and Department respectively.
From the relational schemas illustrated above, use the different relational algebra operators and operations (p, 6, n,
n, U, -, A) discussed in class to build the following queries:
Display employees (by name and address) from "Chicago" and with an annual salary between 60000
(included) and 90000 (excluded) then rename the output as "ChicagoEmployees"
1.
2.
For each employee, who works in the "Design" department since January 2009, display the employee's
name and the employee's annual salary
3.
Find the name and rank of the manager who…
q10
Chapter 3 Solutions
Database Systems: Design, Implementation, & Management
Ch. 3 - What is the difference between a database and a...Ch. 3 - Prob. 2RQCh. 3 - Prob. 3RQCh. 3 - What are the requirements that two relations must...Ch. 3 - Which relational algebra operators can be applied...Ch. 3 - Explain why the data dictionary is sometimes...Ch. 3 - A database user manually notes that The file...Ch. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - Prob. 10RQ
Ch. 3 - Create the table that results from applying a...Ch. 3 - Create the table that results from applying an...Ch. 3 - Using the tables in Figure Q3.13, create the table...Ch. 3 - Prob. 14RQCh. 3 - Prob. 15RQCh. 3 - Prob. 16RQCh. 3 - Identify and describe the components of the table...Ch. 3 - Identify the primary keys. FIGURE Q3.22 THE...Ch. 3 - Identify the foreign keys. FIGURE Q3.22 THE...Ch. 3 - Create the ERM. FIGURE Q3.22 THE CH03_THEATER...Ch. 3 - Create the relational diagram to show the...Ch. 3 - Prob. 22RQCh. 3 - What would be the conceptual view of the INDEX...Ch. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Do the tables exhibit referential integrity?...Ch. 3 - Describe the type(s) of relationship(s) between...Ch. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7PCh. 3 - Prob. 8PCh. 3 - Create the relational diagram to show the...Ch. 3 - Prob. 10PCh. 3 - Prob. 11PCh. 3 - Create the relational diagram to show the...Ch. 3 - Prob. 13PCh. 3 - Do the tables exhibit referential integrity?...Ch. 3 - Prob. 15PCh. 3 - Prob. 16PCh. 3 - For each table, identify the primary key and the...Ch. 3 - Prob. 18PCh. 3 - Do the tables exhibit referential integrity?...Ch. 3 - Identify the TRUCK tables candidate key(s). FIGURE...Ch. 3 - For each table, identify a superkey and a...Ch. 3 - Prob. 22PCh. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Create the ERD. (Hint: Look at the table contents....Ch. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Create the table that would result from applying...Ch. 3 - Create the table that would result from applying...Ch. 3 - Create the table that would result from applying a...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- What is a relation?arrow_forwardConsidering the attached E-R diagram; provide SQL statements for the following cases: Create above relations for the E-R diagram above After creating each relation, insert at least 6 rows (tuples) for each relation (table) with data that you invented SALE_ITEM relation should include at least two same SaleID Update a “Price” value of a row in the ITEM relation Updated ITEM (ItemID) should be in SALE_ITEM The solution should include screenshots of your relations with data. Discuss issues while solving the above problems and any assumptions that you made.arrow_forwardEmployee: (EID, Name, City, Address) Department: (DID, Department_Name, City, budget) Works IN: (EID, DID, Annual_Salary, Start_Date) Manages: (ManagerID, DepartmentID, rank) DID and EID in Works_IN relation are foreign keys referencing the primary keys of the Department and Employee relations respectively. Manager_ID and Department_ID in the Manages relation are foreign keys referencing the primary keys of the Employee and Department respectively. From the relational schemas illustrated above, use the different relational algebra operators and operations (p, o, n, N, U, -, A) discussed in class to build the following queries: 1. Display employees (by name and address) from "Chicago" and with an annual salary between 60000 (included) and 90000 (excluded) then rename the output as "ChicagoEmployees" 2. For each employee, who works in the "Design" department since January 2009, display the employee's name and the employee's annual salary 3. Find the name and rank of the manager who…arrow_forward
- a) Put the following relation in BCNF: STUDENT_ACTIVITY STUDENT_ACTIVITY (StudentID, StudentName, Activity, ActivityFee, AmountPaid) StudentID StudentName Activity ActivityFee AmountPaid 1 100 Jones Golf 65.00 65.00 2 100 Jones Skiing 200.00 0.00 3 200 Davis Skiing 200.00 0.00 4 200 Davis Swimming 50.00 50.00 5 300 Garret Skiing 200.00 100.00 6 300 Garrett Swimming 50.00 50.00 7 400 Jones Golf 65.00 65.00 400 Jones Swimming 50.00 50.00 b) Put the following relation in BCNF: Student(SSN, sName, address, HScode, HSname, HScity,GPA, priority) Assuming a student can attend more than one high school, and priority is determined by GPAarrow_forwardWhich of the following defines a relationship in which data can have multiple occurrences in each entity? one-to-one one-to-many many-to-many none of the abovearrow_forwardWhat type of relationship can’t be stored in a relational database? Why?arrow_forward
- Define second normal form. What types of problems might you encounter using tables that are not in second normal form?arrow_forwardAccess path A database table is composed of records and fields hold data. Data is stored in records. A field is a part of a record and contains a single piece of data for the subject of the record. The access path for finding the list of books is AUTHOR: AuthorID, Lname BOOKAUTHOR: AuthorID, ISBN BOOKS: Pubdate, ISBNarrow_forwardWhat is the difference between a PRIMARY KEY constraint and a UNIQUE constraint?arrow_forward
- Topic: Database Design It is possible to use NATURAL join, and there are some downsides to using this type of join. What are some of the downsides and provide at least 2 examples of why these types of joins should be avoided.arrow_forwardpart a please fastarrow_forwardThe following functional dependencies describe a relation that is in 2NF.Customer_ID, Store_ID -> Store-Location, Customer_AddressStore_ID -> Store-Location True or False? Thanksarrow_forward
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Enhanced Entity Relationship Model; Author: Data Science Center;https://www.youtube.com/watch?v=ocQUtXPumdQ;License: Standard YouTube License, CC-BY