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File Activity:
The file activity is a measure of the proportion of records processed during an update run.
Therefore we define the activity ration as shown below.
Activity ratio = m / n
Where m = number of records to be modified, inserted or deleted and
n = number of records in the file.
STATEMENTS FOR SEQUENTIAL FILES: A basic operation on a file includes the reading and writing of its records. Whenever the file is sequential, there are three verbs for the
Example of compound condition: In common, a compound condition has the form which is as shown below: Where condition-1 & condition-2 can be any one of the below:
FILE-CONTROL paragraph for the indexed files: The common format for the SELECT clause for a file is as shown below: SELECT file-name ASSIGN TO implementor -name
FILE DESCRIPTION- FIXED-LENGTH RECORDS: The normal characteristics of a file are explained in the file description (FD) entry of the DATA DIVISION.
single program how may when statement has used
BLOCK CONTAINS CLAUSE: Integer -1 of the BLOCK CONTAINS clause indicates the block size either in terms of records or in terms of characters. For illustration, BLOCK CONTAINS
Encryption and Decryption
RULES OF MOVE VERB: The Data movement is managed by the rules which are as shown below: (a) The contents of the identifier - 1 or the value of the literal - 1 is moved to
Illustration of Subtract verb: (a) SUBTRACT A FROM B. This illustration means that the value of A will be subtracted from the value of B and the subtracted result will be s
PROGRAM TO FIND INTEREST ON BANK DEPOSITS: We have to write a program to find interest on deposits. The criteria is given below : identification division. program-
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