Discuss some applications of active database. How do spatial database differ from regular database?

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Application of Active Database 

Data monitoring activities such as CIM, Telecommunications Network Management, and Program trading. Medical and Financial Decision Support Systems can greatly benefit from integration with an active database.

  • Production control, e.g., power plants.
  • Maintenance tasks, e.g., inventory control.
  • Financial applications, e.g., stock & bond trading.
  • Telecommunication and network management.
  • Air traffic control.
  • Computer Integrated Manufacturing (CIM) Statistics gathering and authorization tools.

Spatial databases differ from regular databases because Common database systems use indexes for a faster and more efficient search and access to data. This index, however, is not fit for spatial queries. Instead, spatial databases use something like a unique index called a spatial index to speed up database performance. Spatial indexing is very much required because a system should be able to retrieve data from a large collection of objects without really searching the whole bunch. It should also support relationships between connecting objects from different classes in a better manner than just filtering.

Aside from the indexes, spatial databases also offer spatial data types in their data model and query language. These databases require special kinds of data types to provide a fundamental abstraction and model the structure of the geometric objects with their corresponding relationships and operations in the spatial environment. Without these kinds of data types, the system would not be able to support the kind of modeling a spatial database offers.


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