Thursday, March 31, 2005

Resolution :case Flashy Flashers Inc.

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Advantages of Databases:

  1. is possible to reduce redundancy.
  2. inconsistency can be avoided to some extent.
  3. Data can be shared.
  4. may enforce the rules.
  5. is possible to apply security restrictions.
  6. integrity can be maintained.
  7. is possible to balance conflicting requirements.
Database Manager:
  1. Define conceptual scheme.
  2. Define the internal schema.
  3. Liaise with users.
  4. Define security and integrity checks.
  5. Define backup and recovery procedures.
  6. Monitor performance.

DBMS Features:

  1. Data Definition.
  2. Data Handling.
  3. A planned application. Request
  4. unplanned.
  5. Security and Data Integrity.
  6. Recovery and Data Concurrency.
  7. Data Dictionary.
  8. Performance.

Problem of Distributed Systems:

  1. query processing.
  2. Catalog Management. Spread
  3. Updates.
  4. Recovery Control.
  5. Concurrency Control.

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