Muddiest Points for Database Technologies and Applications

As I was going throught the lecture slides and the course readings a number of questions came to mind:

  1. The article in Wikipedia listed a number or usability requirements that all database types had to adhere to such as active, cloud, data warehouse,dsitributed, document-oriented, embedded, end-user as so forth. If certain 'database types' fell outside of the outlined criteria would they still be called such and if not what name would be given to them?
  2. In a large database are there sub-databases carrying out specific tasks or does the one database handle everything?
  3. If ORACLE is a database management system for a library's bibliograhpic collection, can LS Cataloguing implemented by TLC http://www.bcplib.org/PDF/Manuals/CIRC.pdf (what libraries may use to catalogue books electronically) be then called a database?

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