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Is 380 Assignment 1

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IS 380
Assignment 1
Chapter 1 1. A database stores: a. End-user data: raw facts of interest to end user b. Metadata: data about data, which the end-user data are integrated and managed)

2. A collection of programs that manages the database structure and controls access to the data stored in the database: Database management system (DBMS)

3. This is when you can change the file structure without affecting the application’s ability to access the data: structural independence

4. This occurs when not all of the required changes in the redundant data are made successfully: data anomaly

5. These are the functions of a DBMS: c. Intermediary between user and database d. Enables data to be shared e. Presents the end user with an integrated view of the data f. Receives & translates application requests into operations required to fulfill requests. g. Hides database’s internal complexity from the application programs and users

6. This is the de facto query language and data access standard supported by the majority of DBMS vendors: structured query language (SQL)

7. People naturally have an integrated view of the data in their environment. This leads to a new problem that has evolved with the use of spreadsheets and desktop databases. This problem is users lack proper data-modeling and database design skills.

Chapter 2

8. This type of data model was developed in the 1960’s to manage large amounts of data. It contains multiple levels of segments where the higher level is a parent and the lower level a child : Hierarchical model

9. This is the conceptual organization of the entire database as viewed by the database administrator: Schema

10. This defines the environment in which data can be managed and is used to work with the data in the database: Data

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