Experiencing MIS 7th by m kronenke chapter 05
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Chapter 5
Database Processing
“No, Drew, You Don’t Know Anything About Creating Queries."
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AllRoad Parts operational database used to determine which parts to consider for 3D printing.
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If Addison and Drew depend on Lucas (or IT dept) to produce reports, they will (a) wait a long time and (b) probably not
get what they want.
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Once they get data, Addison create queries and reports without help from Lucas.
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Relying on own skills gives more freedom and better results.
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Relational database technology not appropriate for 3D parts files or graphics used for query-by-graphics. MongoDB a
better choice.
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Study Questions
Q1: What is the purpose of a database?
Q2: What is a database?
Q3: What is a database management system?
Q4: How do database applications make databases more useful?
Q5: How are data models used for database development?
Q6: How is a data model transformed into a database design?
Q7: What is the users’ role in the development of databases?
Q8: 2024?
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Q1: What Is the Purpose of a Database?
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Organize and keep track of things
Keep track of multiple themes
General rule:
Single theme - store in a spreadsheet
Multiple themes - use a database
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A List of Student Grades Presented in a Spreadsheet – Single Theme
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Student Data Form With Multiple Themes
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Q2: What Is a Database?
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Hierarchy of Data Elements
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Components of a Database
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Example of
Relationships Among
Rows
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Sample Metadata (in Access)
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Ethics Guide: Querying Inequality?
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MaryAnn has a data mart.
Business professional majored in HR, now "expert" in SQL.
Uses SQL to do her job faster and better.
What are your personal, professional, social responsibilities?
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Ethics Guide: Querying Inequality? (cont’d)
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You can query databases to learn all sorts of patterns and trends.
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Be sure what answers you want before starting query.
How strongly do you feel about social and personal responsibility, considering your needs and those of your
family?
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How important is social responsibility posture of an employer to you? Is that something you want to add to your
criteria for finding a job?
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Q3: What Is a Database Management System (DBMS)?
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Program used to create, process, and administer a database.
Licensed from vendors such as IBM, Microsoft, Oracle, and others.
DB2 from IBM, Access and SQL Server from Microsoft, Oracle Database from Oracle Corporation.
MySQL - open source, license-free for most applications.
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Processing the Database
Four DBMS operations
1. Read
2. Insert
3. Modify
4. Delete data
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Processing the Database
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Structured Query Language - SQL (see-quell)
– International standard
– Used by most popular DBMS
INSERT INTO Student
([Student Number], [Student Name], HW1, HW2, MidTerm)
VALUES (1000, ‘Franklin, Benjamin’, 90, 95, 100)
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Administering the Database
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Used to set up a security system involving user accounts, passwords, permissions, and limits for
processing.
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Permissions can be limited in very specific ways.
Backing up database data, adding structures to improve performance of database applications, removing
unwanted data.
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Summary of Database Administration Tasks
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Summary of Database Administration Tasks (cont'd)
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Elements of Database Applications
Forms
View data;, insert new, update existing, and delete existing data
Reports
Structured presentation of data using sorting, grouping, filtering, and other operations
Queries
Search based upon data values provided by the user
Application Programs
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Provide security, data consistency, and special purpose processing, e.g., handle out-of-stock
situations
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Using MIS InClass 5: How Much Is a Database Worth?
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Data has resale value.
Data on everything customers do.
Use to target customers for offerings they care about, and avoid those they don’t.
Costly and difficult to replace data collected over many years.
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Q4: How Do Database Applications Make Databases
More Useful?
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Example of a Student Report
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Query Example
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Browser Forms, Reports, Queries, and Applications
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