Examples

• The author presents a number of different database applications
• You should read this section to get a true feeling for the scope of some databases.
• Personal Database
  • Think, perhaps, a home inventory or a sales person's contacts
  • 1 user
  • 1-2 tables
  • and perhaps 2,000 rows.
• Medical Office Database
  • Patient records.
  • tens of users
  • 5-10 different tables
  • Perhaps 100,000 rows.
  • Need for concurrency-control.
• Customer Relationship Management
  • Customer contact info
  • Purchases, support contracts, requests for information, ...
  • hundreds of users
  • 50+ tables
  • 10,000,000 rows.
• Enterprise Resource Planning
  • Scheduling production, sales, inventory , purchasing ... for a (LARGE) business
  • thousands of users
  • hundreds of tables.
  • 10,000,000 rows.
• E-Commerce
  • Not only track orders, and inventory, but track clicks.
  • Look here
  • Millions of users
  • Billions of rows.
• Digital dashboard/Data mining
  • Provide a summary of existing data for management, information discovery.
  • Usually graphical, and may cross database boundaries.
  • Used by high level managers to mine for information in active databases.
  • Try this
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• Data mining
  • Searching a database or databases for patterns, unusual records and dependencies.
  • (semi) automatically discovering information using Knowledge Discovery Techniques.
• If you have a few moments, look this article over.