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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.
Illustration of perform statement: PERFORM CALCUALTE-TAX. In this illustration, the CALCULATE-TAX is either a section name or paragraph name. Assume that it is a section
calculate simple interest
DELETE STATEMENT: The format of the delete statement is as shown below: DELETE file-name RECORD [ ; INVALID KEY imperative-statement ] Whenever the ACCESS MOD
PROGRAM FOR INVENTORY We have to write a program to update the inventory file. Consider 2 files,viz, invfile an tranfile. Invfile has 3 fields pno,name,qty. Tranfile has 3 fil
Block Size: The normal practice is to group a number of consecutive records to form that is termed as a block or a physical record. The number of records in a block is frequen
Sign - Picture clause: The numeric data item can be signed or unsigned. If a numeric data is regarded as unsigned then during the execution these unsigned data items are treat
CR and DB (Credit and Debit Sign): The two characters that is CR or DB symbol may appear only at the rightmost place of the picture. They are similar to the minus sign edit ch
PROGRAM FOR SIZE ERROR: We have to write an easy program to elaborate the size error option. Identification division. Program- id. sizeerr. Environment division.
How do I move a single QUOTE to a field or set the value clause? "''" does not work?
Encryption and Decryption
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