What is an area sweep and when is it used?

An area sweep accesses records on the basis of the physical location in a database area. It can be total, meaning a record by record search of the area, or it can be of occurrences of records of a specific type.
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Geekshiraj

  • Jul 23rd, 2010
 

In performing an area sweep, IDMS/R scans through all the records in an area in physical sequence. The order in which records are retrieved will generally have little relationship to the logical sequence of records.

Area sweeps are useful when we want to retrieve all the records in an area without regard to the order in which we get them.  It is commonly used in extract jobs.

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