Unit Databases Unit Tech Talk: E-Commerce The Importance of E-Commerce (pg. 255–256) The...
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Transcript of Unit Databases Unit Tech Talk: E-Commerce The Importance of E-Commerce (pg. 255–256) The...
Databases Unit
Databases Unit
Tech Talk: E-Commerce The Importance of E-Commerce (pg. 255–256) Doing Business on the Internet (pg. 257–259) Elements of a Successful E-Commerce Site (pg. 260–262) Privacy and Security (pg. 263–264)
Projects Project 1: Create a Database (pg. 266–278) Project 2: Find Information in a Database Table (pg. 279–289
) Project 3: Display Data in Forms and Reports (pg. 290-300)
ContentsStarting with You What are the advantages and disadvantages when you shop online? To find out, go to the Online Learning Center at concepts.glencoe.com. Choose Before You Read Quizzes and take the Unit 6 Pre-Quiz.
Copyright © The McGraw-Hill Companies, Inc. All rights reserved.
Databases Unit
E-Commerce
How e-commerce benefits consumers and businesses To compare ways of doing business on the Web To identify elements of a successful e-commerce Web site To evaluate privacy and security on the Internet
You Will LearnKey Terms
e-commerce
consumer
banner ad
pop-up ad
click-through
database
pg. 255-264
Databases Unit
E-Commerce
Why Is E-Commerce So Popular?E-commerce allows people to shop for a wide variety of products and services from the comfort of their own home computers. Online shopping offers many benefits to both consumers and businesses, including:
Access to a wide variety of businesses. Rapid price comparisons. Lower staffing needs for retail stores. Increased efficiency of energy and finances.
E-commerce
The buying and selling of products and services over the Internet. (pg. 255)
Consumer
A person who buys things. (pg. 255)
The Importance of E-Commerce pg. 255-256
Databases Unit
E-Commerce
Tech Talk Assessment pg. 213
Evaluate How do you think e-commerce saves energy and money ? Possible answers include:
Consumers do not have to drive to store locations. Consumers can find different products and services
without physically having to visit many different stores. Businesses can sell more products without
increasing staffing.
Databases Unit
E-Commerce
Are There Different Kinds Of E-Commerce?Businesses that use the Internet may be classified as one of the following types:
Brick-and-mortar - Products are sold only in actual stores (although advertising may be done on the Internet).
Click-and-mortar - Products are sold online and in actual stores.
Click-and-order - Products are only sold only on the Internet.
Doing Business on the Internet pg. 257–259
Databases Unit
E-Commerce
There are three ways in which e-commerce may take place:
B2B – business to business B2C – business to consumer C2C – consumer/individual to consumer
Doing Business on the Internet pg. 257–259
Databases Unit
E-Commerce
List Provide two examples each of B2B, B2C, and C2C e-commerce.
Possible examples include:
B2B – Staples sells supplies to corporations, Boeing sells airplanes to American Airlines, Ford sells cars to Hertz, etc.
B2C – Wal-Mart, amazon.com, Travelocity, and FedEx are all businesses that sell goods or services to individual consumers.
C2C – eBay and online classified ads are examples of individuals/consumers selling good or services.
Databases Unit
E-Commerce
How Do Businesses Advertise on the Web?Two popular ways for businesses to advertise on the Internet are:
banner ads pop-up ads
Click-throughs help a business determine if its online advertisements are successful.
Elements of a Successful E-Commerce pg. 260–262
banner ad An easy-to see, eye-catching graphic advertisement that takes you to another Web site when you click on it. (pg. 260).
pop-up ad A small Web page containing an advertisement that pops up on the screen when you are visiting a Web site. (pg. 261).
click-through The number of customers who click on an advertisement to move from one Web site to another. (pg. 261).
Databases Unit
E-Commerce
What Are Sticky Web Sites?Four features that inspire consumers to revisit a Web site frequently are:
Usability – The site is easy to use. Personalization – The site remembers your information
when you return. Electronic catalogs – Users can find pictures,
descriptions, and reviews of products. Customer service – Shoppers can easily get answers to
their questions.
Elements of a Successful E-Commerce pg. 260–262
Databases Unit
Compare How is shopping at a business’s Web site similar to shopping in a physical store?
E-Commerce
Possible answers include:
In both places, products are categorized so they are easy to find. In both places, customer service is important. In both places, consumers like to be addressed personally. Advertisements can be found both inside and outside an actual store
or Web site.
Databases Unit
E-Commerce
Businesses keep track of customer information in databases, which must be physically secure and electronically secure in order to protect privacy.
Ways you can protect your privacy online include:
Avoid doing business with unfamiliar vendors. Look for a padlock symbol on the screen. Look for “https” in the address of a Web site. Do not provide a credit card number or other personal
information unless a site is secure. Do not share passwords with other people.
Privacy and Security pg. 263–264
database
A collection of files that are organized in a logical way. (pg. 264)
Databases Unit
E-Commerce
Tech Talk Assessment pg. 265
Describe What are the elements of a Web site that keep users coming back ? Why ?
Possible answers include:
Usability – makes it faster and easier to find information with easy-to-use organization.
Personalization – allows the Web site to cater to a user’s likes and personality.
Electronic catalogs – let a user know exactly what they are purchasing.
Customer service – provides comfort knowing problems will be answered and products explained.
Self-check Assess your understanding of what you read. Go to the Online Learning Center at concepts.glencoe.com. Choose After You Read Quizzes and take the Unit 6 Tech Talk Quiz.
Databases Unit
E-Commerce
Tech Talk Assessment pg. 265
Identify What are at least three ways you can protect your privacy while shopping online ?
Possible answers include:
Avoid doing business with unfamiliar vendors. Look for a padlock symbol on the screen. Look for “https” in the address of a Web site. Do not provide a credit card number or other personal
information unless a site is secure. Do not share passwords with other people.
Databases Unit
Create a Database
Exercise 1-1 Explain the structure and uses of a database Identify the parts of the Access screen
Exercise 1-2 Identify the objects in a database Create a new database file Create a table
Contents
pg. 266–278
Key Terms
table
record
field
data type
primary key
relational database
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Databases Unit
Create a Database
Exercise 1-3 Enter information into a field Create a new record in a table Move through the records in a table
Contents
pg. 266–278
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Databases Unit
Create a Database
pg. 267–268Exercise 1-1 Get to Know Microsoft Access
In this exercise you will explore the Access screen and become familiar with the various parts of a database table.
Databases consist of tables, which arrange information into columns and rows:
Rows contain data records, which include all of the information about one topic.
Columns contain data fields, which describe the type of information to be found in that column.
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table
A collection of information, or data, arranged in columns and rows. (pg. 267)
record
All of the information about one person or event; each row in a table is a record. (pg. 267)
field
The information contained within a record; each column lists a specific field. (pg. 267)
Microsoft Access
APPLICATIONS USED
6A Customer Database
DATA FILE USED
Databases Unit
Create a Database
pg. 269–272Exercise 1-2 Create a Database
In this exercise you will create a table for T-shirts that your class will be selling. You will open a new blank database and create a table.
When you create a database table, you:
Name the table Name each field Set the field’s data type
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data type
The kind of information you display in a field. (pg. 269)
Microsoft Access
APPLICATIONS USED
Databases Unit
Create a Database
pg. 269–272Exercise 1-2 Create a Database
The four most commonly used data types are:
AutoNumber - automatically creates a new number each time a record is added; often used as a primary key
Text - uses letters and words Currency - shows a monetary value Number - uses numbers to show amounts
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primary key
A unique number that is created when a new record is added to a database. (pg. 269)
Databases Unit
Create a Database
pg. 273–275Exercise 1-3 Enter Data Info a Table
In this exercise you will add data about the T-shirts you are selling to keep track of your inventory. Each type of T-shirt will have its own record, which you will enter into the table you created in Exercise 1-2.
Databases are used to keep track of hundreds or even thousands of records. Records may be stored in different tables within the same database. With a relational database, you can:
Organize information into different types of tables. Quickly find information entered into various tables. Display information from more than one table in a form.
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relational database
A database that makes it possible to organize and quickly find information that is entered into a number of tables. (pg. 273)
Microsoft Access
APPLICATIONS USED
Databases Unit
Create a Database, pg. 266-278
Project Assessment
Compare and Contrast How are records and fields different from each other? How are they alike ?
Possible differences include: Records are found in rows and include all of the
information about one topic. Fields are found in columns and describe the type
of information to be found in that column.
Possible similarities include: Both records and fields are found in a table. Both records and fields are used to organize information
in a database.
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Databases Unit
Create a Database, pg. 266-278
Project Assessment
Make Predictions Imagine that you own a company (any kind). Describe how the use of primary keys in your business’s databases might help you.
In a database, primary keys allow you to identify and find items by unique identifying numbers. Some examples of how to use a primary key might be:
Giving each customer a unique customer number Providing unique account numbers to each transaction Giving each product its own product number
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Databases Unit
Create a Database, pg. 266-278
Project Assessment
Define What is a relational database?
A relational database is a database that makes it possible to organize and quickly find information that is entered into a number of tables.
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Databases Unit
Find Information in a Database Table
Exercise 2-1 Sort a table in ascending and descending order Sort a table by name, quantity, and date
Exercise 2-2 Use the Filter By Selection method
Exercise 2-3 Use the Filter By Form method
pg. 279–289
Key Terms
sort
filter
query
criteria
Filter By Selection
Filter By Form
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Databases Unit
Find Information in a Database Table
pg. 280–282
In this exercise you will sort your Customer Orders table in ascending and descending order to help you find information more quickly.
One of the simplest ways to find information in a database is to sort the data. Two kinds of sorts are:
Ascending Descending
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sort To change the order of information. (pg. 280)
Microsoft Access
APPLICATIONS USED
6A Customer Database
DATA FILE USED
Exercise 2-1 Sort a Database Table
Databases Unit
Find Information in a Database Table
pg. 280–282Exercise 2-1 Sort a Database Table
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Data Type Ascending Sort Descending Sort
Number, currency
Lowest to highest number
Highest to lowest number
Text Alphabetic order from A to Z
Reverse alphabetic order from Z to A
Date Oldest date to most recent date
Most recent date to oldest date
Ascending and descending sorts have different effects on different types of data:
Databases Unit
Find Information in a Database Table
pg. 283–284Exercise 2-2 Filter by Selection
In this exercise you will use one type of filter, called Filter By Selection, to find out how many small blue T-shirts are available.
If you are working with a very large database, you may want to use one of the following tools to limit the records you see:
Filter Query
The Filter By Selection tool allows you display data based on a specific value, or criteria, that you set.
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FilterLimits the records you see to only the data you want. (pg. 283)
Query Limits the records you see to only the data you want. (pg. 283)
Filter By Selection Displays all the records that match a specific value. (pg. 283)
Criteria Values or conditions that can be chosen for a filter. (pg. 283)
Microsoft Access
APPLICATIONS USED
Databases Unit
Find Information in a Database Table
pg. 285–286Exercise 2-3 Filter by Form
In this exercise you will use Filter By Form to find out how many large blue T-shirts you have.
Another way to filter data is called Filter By Form. Filter By Form is different from Filter By Selection in that you can enter two or more criteria at once.
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Filter By Form A method of filtering data that allows two or more criteria at once. (pg. 285)
Microsoft Access
APPLICATIONS USED
Databases Unit
Find Information in a Database Table, 279–289
Project Assessment
Compare and Contrast How is Filter By Form different from Filter By Selection ? Give an example of when you might use each ?
Filter By Form is different from Filter By Selection in that Filter By Selection uses one criteria at a time, whereas Filter By Form can use two or more criteria at once.
You might use Filter By Selection to find out how many round tables are available in your furniture store. You might use Filter By Form to find out how many oak, round tables are available.
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Databases Unit
Find Information in a Database Table, 279–289
Project Assessment
Analyze Decide whether each of the following tools would be more useful to find information in a small database or a large database.
1. filter
2. sort
3. query
The correct answers are:1. filter / large database2. sort / small database3. query / large database
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Databases Unit
Find Information in a Database Table, 279–289
Project Assessment
Define When you are working with a database, what does criteria refer to?
Criteria are values or conditions that describe information in a database. When you use a filter, you search for information according to desired criteria.
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Databases Unit
Display Data in Forms and Reports
Exercise 3-1 Use a wizard to create a form Change a record Add a record
Exercise 3-2 Create a report Organize and total data Print a report
pg. 290–300
Key Terms
form
wizard
report
33
Databases Unit
Display Data in Forms and Reports
pg. 291–294Exercise 3-1 Create a Form
In this exercise you will use a wizard to create a form for your customer database.
An easy way to add data to a table is to use a form. Forms let you:
View records Change records Add new records Delete records
You can use a wizard tool to take you through the steps necessary to create an effective form.
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form A database feature that arranges data from a table so that it easy for anyone to enter data. (pg. 291)
wizard A tool that gives directions or a number of steps needed to create a product, such as a form. (page 291)
Microsoft Access
APPLICATIONS USED
Databases Unit
Display Data in Forms and Reports
pg. 295–297Exercise 3.2 Create a Report
In this exercise you will use a wizard to create a report that will provide the total number of T-shirts sold in each style.
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Microsoft Access
APPLICATIONS USED
report A printable summary of the information in a database. (pg. 295)
Databases Unit
Display Data in Forms and Reports
pg. 295–297Exercise 3.2 Create a Report
A report can help you summarize and evaluate the contents of a database without having to scan through unnecessary information. A database report can:
Display details of a database record Highlight the most important information in a database Add up, or total, numbers in a database table.
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Microsoft Access
APPLICATIONS USED
report A printable summary of the information in a database. (pg. 295)
Databases Unit
Display Data in Forms and Reports, 290–300
Project Assessment
Describe Give an example of when a person might want to print a database report.
Some examples might be: If you owned a furniture store, you might want to print a
report of the total number of chairs you sold in a particular style in a particular month.
You might want to use a report as a receipt for a customer, showing the customer number, the date of purchase, the products purchased, and the product and total amounts.
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Databases Unit
Display Data in Forms and Reports, 290–300
Project Assessment
Draw Conclusions Why do you think Web sites frequently provide an online form when they need to collect personal information from customers?
Businesses often use very large databases to organize information about customers and sales, among other things. A form is designed to ask for necessary information from a customer and insert it automatically into their database. This is more efficient than to collect customer information individually and enter it into the database.
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Databases Unit
Display Data in Forms and Reports, 290–300
Project Assessment
Define What is a wizard in Microsoft Office ?
In Microsoft Office, a wizard is an interactive tool that leads you through a set of step-by-step instructions to complete a potentially complex task.
22
Databases Unit
DatabasesUnit
Explain How has e-commerce changed the way businesses compete with each other ?
The exchange of products and services over the Internet has opened up a whole new way for consumers to find what they are looking for and for businesses to sell it to them. In order to remain competitive, many businesses now must have a Web site. The Internet can also increase a business’s advertising power, through such tools as Web sites, banner ads, and pop-up ads.
Unit Assessment
Assessment Double-check your knowledge of Access. Go to the Online Learning Center at concepts.glencoe.com. Choose e-Review Quizzes and take the Unit 6 Tech Assess Quiz.
Databases Unit
DatabasesUnit
Evaluate Why would a business choose to have a Web site but not sell its products online ?
Possible answers include:
Some products must be seen in person before being purchased, such as real estate.
It is not practical to ship some products, such as groceries.
For a business like a restaurant, the customer must go to the actual location.
The business might advertise a service, such as dog walking, that must be done in person.
Unit Assessment
Databases Unit
DatabasesUnit
Make Predictions What information do you think you might find in a Web site’s privacy policy ?
Possible answers include:
An explanation of how the company intends to use any information you give them
Rules a company has about sharing your personal information with other businesses
Information about how the site enforces laws protecting minors on the Web
Unit Assessment
Databases Unit
DatabasesUnit
Describe Give at least one example of how you interact with a database regularly.
Possible examples include:
Finding books in the school library Ordering products on the Internet Doing Web searches
Unit Assessment