About Data Base

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About Data Base

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About Data Base

  1. 1. Types of Databases • Single-user • Desktop • Multi-user • Workgroup • Enterprise
  2. 2. Location of Databases[Types] • Centralized • Distributed
  3. 3. Uses of Databases • Transactional (or production) • Data warehouse
  4. 4. Why Database Design is Important • Defines the database’s expected use • Different approach needed for different types of databases • Avoid redundant data (unnecessarily duplicated) • Poorly designed database generates errors leads to bad decisions can lead to failure of organization
  5. 5. The Database System Environment • Database system is composed of 5 main parts: 1. Hardware 2. Software Operating system software• Operating system software • DBMS software • Application programs and utility software 3. People 4. Procedures 5. Data

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