Chapter10 Database Management

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Chapter10 Database Management by Mind Map: Chapter10 Database Management

1. Databases, Data, and Information

1.1. Database

1.1.1. Collection of data organized in a manner that allows access, retrieval, and use of that data

1.2. Data

1.2.1. Collection of unprocessed items -Text,Numbers,Images,Audio,Video

1.3. Information

1.3.1. Processed data -Documents,Audio,Images,Video

2. The Hierarchy of Data

2.1. character

2.2. field

2.3. record

2.4. data file

3. Maintaining Data

3.1. File maintenancerefers to the procedures that keep data current

4. File Processing Versus Databases

4.1. File processing system

4.1.1. •Each department has its own set of files

4.1.2. •Used for many years

4.1.3. •Have data redundancy

4.1.4. •Isolate data

4.2. Database approach

4.2.1. •Programs and users share data

4.2.2. •Reduce data redundancy

4.2.3. •Improve data integrity

4.2.4. •Share data

4.2.5. •Allows easier access

4.2.6. •Reduces development time

4.2.7. •Can be more vulnerable

5. Database Management Systems

5.1. A DMBS provides a variety of techniques to restore the database to a usable form in case it is damaged or destroyed

6. Relational, Object‐Oriented, and Multidimensional Databases

6.1. A relational databasestores data in tablesthat consist of rows and columns

6.2. An object‐oriented database (OODB) stores data in objects

6.3. A multidimensional database can store data in more than two dimensions of data –Sometimes known as a hypercube,Can consolidate data much faster than a relational database

7. Web Databases

7.1. Shop for products or services

7.2. Buy or sell stocks

7.3. Search for a job

7.4. Make airline reservations

7.5. Register for college classes

7.6. Check semester grades

8. Database Administration

8.1. Creates and maintains the data dictionary, manages security, monitors performance, and checks backup and recovery procedures