Database Management
by Tiwawan 11
1. Database
1.1. Collection of data organized in a manner that allows access, retrieval, and use of that dat
2. Data
2.1. Text
2.2. Numbers
2.3. Images
2.4. Audio
2.5. Video
3. Information
3.1. Processed data
3.2. Documents
3.3. Audio
3.4. Images Video
4. Valuable information should have the following characteristics
4.1. Accurat
4.2. Verifiable
4.3. Timely
4.4. Organized
4.5. Accessible
4.6. Useful
4.7. Cost‐effective
5. The Hierarchy of Data
5.1. Text
5.2. Numeric
5.3. AutoNumber
5.4. Currency
5.5. Date
5.6. Memo
5.7. Yes/No
5.8. Hyperlink
5.9. Object
5.10. Attachment
6. Maintaining Data
6.1. Adding records
6.2. Modifying records
6.3. Deleting records
7. Relational, Object‐Oriented, and Multidimensional Databases
7.1. A data model consists of rules and standards that define how the database organizes data
7.2. A relational database stores data in tables that consist of rows and columns
7.2.1. Each row has a primary key
7.2.2. Each column has a unique name
7.3. A relationship is a link within the data
7.4. Structured Query Language (SQL) is a query language that allows users to manage, update, and retrieve data
7.5. An object‐oriented database (OODB) stores data in objects
7.6. Examples of applications appropriate for an object‐oriented database include
7.6.1. Multimedia database
7.6.2. Groupware databas
7.6.3. Computer‐aided design databas
7.6.4. Hypertext database
7.7. A multidimensional database can store data in more than two dimensions of data
7.7.1. Sometimes known as a hypercube
7.7.2. Can consolidate data much faster than a relational database
7.8. A data warehouse is a huge database that stores and manages the data required to analyze historical and current transactions
8. Check semester grades
8.1. It is important to have a carefully designed database
8.2. Employees should learn how to use the data in the database effectively
8.2.1. Interact with database
8.2.2. Identify new data for the database
8.2.3. Maintain the database
9. Objectives Overview
9.1. Define the term, database, and explain how a database interacts with data and informatio
9.2. Define the term, data integrity, and describe the qualities of valuable information
9.3. Discuss the terms character, field, record, and file
9.4. Describe file maintenance techniques and validation techniques
9.5. Differentiate between a file processing approach and the database approach
9.6. Discuss the functions common to most database management systems
9.7. Describe characteristics of relational, object‐ oriented, and multidimensional database
9.8. Explain how to access Web database
9.9. Identify database design guidelines and discuss the responsibilities of database analysts and administrator
10. File Processing Versus Databases
10.1. File processing system
10.1.1. Each department has its own set of file
10.1.2. Used for many year
10.1.3. Have data redundancy
10.1.4. Isolate data
10.2. Database approach
10.2.1. Programs and users share data
10.2.2. Reduce data redundancy
10.2.3. Improve data integrity
10.2.4. Share data
10.2.5. Allows easier access
10.2.6. Reduces development time
10.2.7. Can be more vulnerable