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Exam (elaborations)

Database Design With Complete Solutions Latest Update

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  • Course
  • Database Design
  • Institution
  • Database Design

Database Design With Complete Solutions Latest Update

Preview 3 out of 26  pages

  • August 5, 2024
  • 26
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Database Design
  • Database Design
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Database Design With Complete Solutions Latest
Update

Data - correct answers Facts that can be recorded and stored using computer
media



Information - correct answers Data processed to increase the knowledge of the
people who use it



Database Management System (DBMS) - correct answers General-purpose
software system that facilitates the processes of defining, creating, using, and
maintaining databases



Database - correct answers An organized collection of logically related data.

Includes data and metadata.



data - correct answers the actual values of interest



Metadata - correct answers Data that describes the properties or charac-teristics
of other data (a means of providing context for data)



Data dictionary - correct answers location where definitions of data (metadata) are
maintained

,Data access - correct answers read, insert, update, and delete



Rows - correct answers unique instances or records of entity



Columns - correct answers store attribute data



Primary key - correct answers Enforces uniqueness for each record



Foreign keys - correct answers Define relationships between tables



Object-Relational Database Model - correct answers Combine:

Ability of object technology to handle advanced relationship types

Data integrity, reliability, and recovery features of the traditional relational model



Represented by the most popular and powerful of modern database management
systems

E.g., Oracle, IBM DB2, Microsoft SQL Server



Transaction Processing Systems (TPS) - correct answers Designed to support the
processing of everyday operational business transactions (i.e., retrieving, adding,
modifying, and deleting data)



Represent the vast majority of database systems

, Are the primary focus of this course



Decision Support Systems (DSS) - correct answers Specifically designed to aid
managers in decision-making tasks



Contain data that has been accumulated over time to aid in trend analysis and
forecasting



Data about subjects must be organized in such a way that it provides a unified,
overall picture of all the important details about the subjects over time



Data warehouses are the most common example



Data marts are subsets of data warehouses designed to support a part of an
organization



Business rules - correct answers Can be used to define or constrain some aspect of
a business's structure or processes



Database systems should support business rules that are relevant to the specific
functions supported by the system

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