File volatility and file interrogation, COBOL Programming

File volatility:

File volatility associates to the number of times the updating of records are needed during some time period.

File interrogation:

Some files hold reference data. These files are mainly used for the purpose of the interrogation. The interrogation means a reference to a specific record for a specific answer without changing the record in any manner.

Illustration:  The Price list can be file that is to be constantly interrogative during a billing run.

 

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