Database Management Sysytems

If you were designing a Web-based system to make airline reservations and to sell airline tickets, which DBMS Architecture would you choose from Section 2.5?

  • Why?
  • Why would the other architectures not be a good choice?
  • Describe the three-schema architecture. Why do we need mappings among schema levels? How do different schema definition languages (SDL) support three-schema architectures.
  • Discuss the main categories of data models. What are the basic differences among the relational model, the object model, and the XML model?

300 words, APA7

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