Database Systems: Design, Implementation, and Management



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Database systems and benefits

Database Systems

  • Database consists of logically related data stored in a single repository
  • Provides advantages over file system management approach
    • Eliminates inconsistency, data anomalies, data dependency, and structural dependency problems
    • Stores data structures, relationships, and access paths in addition to application data

Database vs. File Systems

  • Database Systems: Design, Implementation, & Management, 5th Edition, Rob & Coronel
  • Figure 1.6

Database System Environment

  • Database Systems: Design, Implementation, & Management, 5th Edition, Rob & Coronel
  • Figure 1.7

Database System Types

  • Database Systems: Design, Implementation, & Management, 5th Edition, Rob & Coronel
  • Databases can be differentiated by different factors including:
  • Single-user vs. Multiuser Database
    • Desktop
    • Workgroup
    • Enterprise
  • Centralized vs. Distributed
  • Use
    • Production or transactional
    • Decision support or data warehouse

DBMS Functions

  • Database Systems: Design, Implementation, & Management, 5th Edition, Rob & Coronel

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