EBK USING MIS
10th Edition
ISBN: 8220103633642
Author: KROENKE
Publisher: YUZU
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Chapter 5.8, Problem 5.4ARQ
Explanation of Solution
A database contains all the necessary information that is required for processing the business.
- The database is not useful for the business user since the contents that are present in them are structured in an unorganized way.
- The data stored in the database is present in the raw form and hence database is not ideal for the users.
Four elements of database application:
The four elements of database applications that are listed below:
- Forms
- Reports
- Queries
- Application Programs.
Purpose of the elements of database application:
The purpose of the each element is described below:
Forms:
The data present in the database can be viewed, inserted, updated and deleted using the elements.
Let us consider the example:
- Consider the student mark that needs to updates in the database.
- The form can be used to enter the marks scored by the user and the mark entered by the user can be viewed by the user through forms.
- Consider the mark that is entered by the user needs to be corrected and it can be updated through forms.
- Any student record that is not required can be deleted through forms.
Reports:
The data that are stored in the database are represented in the structural format by performing sorting, grouping, filtering and through other data manipulation process.
Let us consider the example:
A student record whose score can be viewed from highest to lowest order by using the sorting operation.
Queries:
The data values can be retrieved based on the search made by the user.
Let us consider the example:
A student whose score is greater than “90” can be viewed using the query given by the user.
Application Programs:
Application programs are used to provide security to the data, maintaining the consistency of the data and to process special purpose.
Let us consider the example:
The student data can be corrected only by the teacher who enters it the data is secured in such a way no student cannot modify the data present in the database...
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8. Name and Email AddressesWrite a program that keeps names and email addresses in a dictionary as key-value pairs. The program should display a menu that lets the user look up a person’s email address, add a new name and email address, change an existing email address, and delete an existing name and email address. The program should pickle the dictionary and save it to a file when the user exits the program. Each time the program starts, it should retrieve the dictionary from the file and unpickle it.
How would the user be able to use the program?
Please solve and answer the question correctly please. Thank you!!
Please solve and answer the question correctly please. Thank you!!
Chapter 5 Solutions
EBK USING MIS
Ch. 5.2 - Prob. 1EGDQCh. 5.2 - Prob. 2EGDQCh. 5.2 - Prob. 3EGDQCh. 5.2 - Prob. 4EGDQCh. 5.2 - Prob. 5EGDQCh. 5.2 - Prob. 6EGDQCh. 5.2 - Prob. 7EGDQCh. 5.2 - Consider the adage Never ask a question for which...Ch. 5.3 - Prob. 1SAQCh. 5.3 - Prob. 2SAQ
Ch. 5.3 - Prob. 3SAQCh. 5.3 - Prob. 4SAQCh. 5.8 - Prob. 1SGDQCh. 5.8 - Prob. 3SGDQCh. 5.8 - Prob. 4SGDQCh. 5.8 - Prob. 5.1ARQCh. 5.8 - Prob. 5.2ARQCh. 5.8 - Prob. 5.3ARQCh. 5.8 - Prob. 5.4ARQCh. 5.8 - How are data models used for database development?...Ch. 5.8 - Prob. 5.6ARQCh. 5.8 - Prob. 5.7ARQCh. 5.8 - Prob. 5.8ARQCh. 5 - Draw an entity-relationship diagram that shows the...Ch. 5 - Consider the relationship between Adviser and...Ch. 5 - Prob. 5.3UYKCh. 5 - Prob. 5.4UYKCh. 5 - Study Figure 5-28 to understand the entities and...Ch. 5 - Working with your team, develop a list of seven...Ch. 5 - Modify the E-R model in Figure 5-28 to include a...Ch. 5 - Discuss the advantages and disadvantages of the...Ch. 5 - Transform the data model in Figure 5-28 into a...Ch. 5 - Prob. 5.1CE5Ch. 5 - Fill your database with sample data. Because you...Ch. 5 - Prob. 5.12CE5Ch. 5 - Explain why a one-table database could be stored...Ch. 5 - Prob. 5.14CS5Ch. 5 - Examine the columns in Figure 5-33. Name three...Ch. 5 - Prob. 5.16CS5Ch. 5 - Prob. 5.17CS5Ch. 5 - Explain the statement A database is an abstraction...Ch. 5 - Prob. 5.19CS5Ch. 5 - Prob. 5.2MMLCh. 5 - Prob. 5.21MML
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