Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 14P
Do the tables exhibit referential integrity? Answer yes or no, and then explain your answer. Write NA (Not Applicable) if the table does not have a foreign key.
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The option for referential integrity between the Owner table and the Pet table is cascade and an attempt is made to update the row for Owner 005 in the Owner table (OwnerNum = 005) to have a new OwnerNum of 500. What is the result? (Use only the data in the question. Do not assume other data exists if it is not present in the tables below.) The primary keys are underlined. These are the OwnerNum column in the Owner table and the PetNumber in the Pet table. The foreign key is italicized. This is the OwnerNum column in the Pet table.
Owner Table
OwnerNum
LastName
FirstName
Address
City
State
Zip
005
Smith
Jim
100 Main
Dune
FL
37465
009
Jones
Jane
3245 West
Sanford
FL
32773
012
Johnson
Frank
2 Century
Easton
FL
37256
020
Doe
Sally
101 Basel
Orange
FL
30998
Pet Table
PetNumber
PetName
DOB
Species
OwnerNum
100
Fido
1/1/2005
Canine
009
200
Ajax
12/3/2003
Canine
020
300
Sunshine
6./12/2004…
The option for referential integrity between the Owner table and the Pet table is cascade and an attempt is made to delete the row for owner number 012 in the Owner table. What is the result? (Use only the data in the question. Do not assume other data exists if it is not present in the tables below.) The primary keys are underlined. These are the OwnerNum column in the Owner table and the PetNumber in the Pet table. The foreign key is italicized. This is the OwnerNum column in the Pet table.
Owner Table
OwnerNum
LastName
FirstName
Address
City
State
Zip
005
Smith
Jim
100 Main
Dune
FL
37465
009
Jones
Jane
3245 West
Sanford
FL
32773
012
Johnson
Frank
2 Century
Easton
FL
37256
020
Doe
Sally
101 Basel
Orange
FL
30998
Pet Table
PetNumber
PetName
DOB
Species
OwnerNum
100
Fido
1/1/2005
Canine
009
200
Ajax
12/3/2003
Canine
020
300
Sunshine
6./12/2004
Feline
009
400
King…
You have the following tables:
APARTMENTS (ADDRESS, CITY, STATE, RENTER_ID, RENTER_LAST_NAME)
RENTERS (RENTER_ID, FIRST_NAME, LAST_NAME)
What is the primary key for the APARTMENTS table? (It may be a composite key involving 2 or more fields) What are the foreign keys, if any?
What is the primary key for the RENTERS table? What are the foreign keys, if any?
What field in RENTERS can be eliminated so that the RENTERS table is normalized?
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 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Use Figure Q3.13 to answer Questions 1317. FIGURE...Ch. 3 - Create the table that results from applying a...Ch. 3 - Write the relational algebra formula to apply an...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. 18RQCh. 3 - Prob. 19RQCh. 3 - Prob. 20RQCh. 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. 26RQCh. 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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- I am trying to get rid of duplicate rows in SQL. This is the current code I'm using. Please help me to write a code to create a new table without the duplicates. Select EmployeeID, Username, FirstName, LastName, RoleName, RoleDescription, Count(*) as '# of Duplicates' From [dbo].[vw_MyAccessInfo] Group by EmployeeID, Username, FirstName, LastName, RoleName,RoleDescription Having Count(*) > 1 Select * from [dbo].[vw_MyAccessInfo] Select distinct * from [dbo].[vw_MyAccessInfo]arrow_forwardNot all versions of this database include referential integrity constraints for all foreign keys. Use whatever commands are available for the RDBMS you are using, investigate if any referential integrity constraints are missing. Write any missing constraints and, if possible, add them to the associated table definitions.arrow_forwardAll the queries should be executed in MySQL and Screen Shot has to be attached for each question.arrow_forward
- The option for referential integrity between the Owner table and the Pet table is restrict. An attempt is made to delete the row for owner number 012 in the Owner table. What is the result? (Use only the data in the tables below. Do not assume other data exists if it is not present in the tables below.) The primary keys are underlined. These are the OwnerNum column in the Owner table and the PetNumber in the Pet table. The foreign key is italicized. This is the OwnerNum column in the Pet table. Owner Table OwnerNum LastName FirstName Address City State Zip 005 Smith Jim 100 Main Dune FL 37465 009 Jones Jane 3245 West Sanford FL 32773 012 Johnson Frank 2 Century Easton FL 37256 020 Doe Sally 101 Basel Orange FL 30998 Pet Table PetNumber PetName DOB Species OwnerNum 100 Fido 1/1/2005 Canine 009 200 Ajax 12/3/2003 Canine 020 300 Sunshine 6./12/2004 Feline 009 400 King…arrow_forwardProduce a list of all customer names in which the first letter of the first and last names is in uppercase and the rest are in lowercase. (refer to the tables in the JustLee Books database.)arrow_forwardUsing the corrected code from Step 28, include the Select into a temporary table named temptable. Prove your creation by run running a list from temptable where the title includes the characters eng. Hint: wildcard characters needed on your where clause. corrected code from step 28: select last_name, first_name, title, max(t.to_date), dept_name from employees e join titles t on e.emp_no = t.emp_no join dept_emp de on e.emp_no = de.emp_no join departments d on de.dept_no = d.dept_no group by e.emp_no order by last_name, first_name;arrow_forward
- Problem: Having created the table structure in Problem 1, write the SQL code to enter the first two rows for the table shown in Figure P8.2. Each row should be inserted individually, without using a subquery. Insert the rows in the order that they are listed in the figure.I gor an error: RROR 1062 (23000) at line 1: Duplicate entry '101' for key 'PRIMARY' when I used this script below, I got an error. see image.ERROR 1062 (23000) at line 1: Duplicate entry '101' for key 'PRIMARY' INSERT INTO EMP_1 VALUES ('101','News','John','G','2000-11-08','502');INSERT INTO EMP_1 VALUES ('102','Senior','David','H','1989-07-12','501');arrow_forwardList unique first (first_name) and last names (last_name) of customers (CUSTOMER table) who rented a movie (RENTAL table) between '2011-06-01' and '2012-01-01’ (rental_date). Sort by last_name. The common key is CUSTOMER_ID.arrow_forward4. Update the name of the student to "John Doe" where its id is 10. Enter your answer 5. Modify the "student" table by adding "address" column/field as string and allows null.arrow_forward
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