A Guide to SQL
9th Edition
ISBN: 9781111527273
Author: Philip J. Pratt
Publisher: Course Technology Ptr
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Textbook Question
Chapter 7, Problem 6CAT
Create the following indexes:
- a. Create an index named TRIP_INDEX1 on the TRIP_NAME column in the TRIP table.
- b. Create an index named TRIP_INDEX2 on the TYPE column in the TRIP table.
- c. Create an index named TRIP_INDEX3 on the LAST_NAME and FIRST_NAME columns in the CUSTOMER table.
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1- Create a NONGAME table with the following structure:
Column
Туpe
Length
Decimal Places Nulls Allowed? Description
ITEM NUM
CHAR
Primary Key
4
No
DESCRIPTION
CHAR
30
ON HAND
DECIMAL
4
CATEGORY
CHAR
3
PRICE
DECIMAL
2- Insert into the NONGAME table the item number, description, number of units on
hand, category, and unit price from the ITEM table for each item that is not in
category GME.
3- In the NONGAME table, change the description of item number DL51 to "Classic
Train Set".
4- In the NONGAME table, increase the price of each item in category TOY by two
percent. (Hint: Multiply each price by 1.02).
5- Add the following item to the NONGAME table: item number: TL92; description:
Dump Truck; number of units on hand: 10; category: TOY; and price: 59.95.
6- Delete every item in the NONGAME table for which the category is PZL.
7- In the NONGAME table, change the category for item FD11 to null.
8- Add a column named ON_HAND_VALUE to the NONGAME table. The on-hand
value is a seven-digit…
Task 6:
The Car Maintenance team considered that the available maintenance tasks should also have the price information in the database. Alter the MAINTENANCE_TYPES table to include a new column named MAINTENANCE_PRICE of type FLOAT.
Alter the MAINTENANCE_TYPES table to include pricing information.
WEEK 9 ASSIGNMENT#6
Part II:
Complete the following exercise:
Using a subquery, select student first name where the student is in the student course table.
Using a subquery, select the course id where the average GPA is 2.
Using a subquery, select the course id where the average GPA is greater than 2.
Using a subquery, select student first name where the student is not in the student course t
Chapter 7 Solutions
A Guide to SQL
Ch. 7 - What is a view?Ch. 7 - Which command creates a view?Ch. 7 - Prob. 3RQCh. 7 - What happens when a user retrieves data from a...Ch. 7 - What are three advantages of using views?Ch. 7 - Which command deletes a view?Ch. 7 - Prob. 8RQCh. 7 - Which command terminates previously granted...Ch. 7 - Prob. 10RQCh. 7 - How do you create an index? How do you create a...
Ch. 7 - Prob. 12RQCh. 7 - Does the DBMS or the user make the choice of which...Ch. 7 - Describe the information the DBMS maintains in the...Ch. 7 - The CUSTOMER table contains a foreign key,...Ch. 7 - Prob. 16RQCh. 7 - Prob. 17RQCh. 7 - Prob. 18RQCh. 7 - Prob. 19RQCh. 7 - When would you usually specify primary key...Ch. 7 - Prob. 21RQCh. 7 - Prob. 22RQCh. 7 - Prob. 23RQCh. 7 - Use SQL to make the following changes to the TAL...Ch. 7 - Create a view named ITEM_ORDER. It consists of the...Ch. 7 - Create a view named ORDER_TOTAL. It consists of...Ch. 7 - Write, but do not execute, the commands to grant...Ch. 7 - Prob. 5TDCh. 7 - Perform the following tasks: a. Create an index...Ch. 7 - Delete the index named ITEM_INDEX3.Ch. 7 - Write the commands to obtain the following...Ch. 7 - Prob. 9TDCh. 7 - Prob. 10TDCh. 7 - Toys Galore currently has a credit limit of 7,500....Ch. 7 - Use SQL to make the following changes to the...Ch. 7 - Create a view named RESERVATION_CUSTOMER. It...Ch. 7 - Create a view named TRIP_INVENTORY. It consists of...Ch. 7 - Write, but do not execute, the commands to grant...Ch. 7 - Prob. 5CATCh. 7 - Create the following indexes: a. Create an index...Ch. 7 - Prob. 7CATCh. 7 - Write the commands to obtain the following...Ch. 7 - Prob. 9CATCh. 7 - Ensure that the only legal values for the TYPE...Ch. 7 - Prob. 11CATCh. 7 - Use SQL to make the following changes to the...Ch. 7 - Create a view named CONDO_OWNERS. It consists of...Ch. 7 - Create a view named CONDO_FEES. It consists of two...Ch. 7 - Write, but do not execute, the commands to grant...Ch. 7 - Prob. 5SCGCh. 7 - Prob. 6SCGCh. 7 - Delete the OWNER_INDEX 3 index from the OWNER...Ch. 7 - Write the commands to obtain the following...Ch. 7 - Prob. 9SCGCh. 7 - Ensure that the only legal values for the BDRMS...Ch. 7 - Prob. 11SCG
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- How do you indicate that a column alias should be used?arrow_forwardWhat is the purpose of a column alias?arrow_forwardA new table has been requested to support tracking automated emails sent to customers. Create the table and add data as described below. Tablename: email_log Columns: emailid (numeric), emaildate (datetime), customer# (numeric) Primary key: emailid column, define as an Identity Column Add the following data rows and display resulting rows (if any errors occur, explain why the error is expected) Emaildate = current date, customer# = 1007 Emailid = specify to use the column default value, emaildate = current date, customer# = 1008 Emailid = 25, emaildate = current date, customer# = 1009arrow_forward
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