case study, COBOL Programming

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Add verb, ADD VERB: The ADD Verb can be used to find the sum of two or ...

ADD VERB: The ADD Verb can be used to find the sum of two or more numbers and to store the sum.  The ADD verb takes any one of the two forms as shown below:

Label records or disk directory - file characteristics, Label Records / Dis...

Label Records / Disk Directory: The most important information stored in the header label is what is termed as the file title. In the situation of magnetic-disk files the labe

Illustration of nested if statement, Illustration of nested if statement: ...

Illustration of nested if statement: Consider the nested sentence which is as shown below: The IF-ELSE pairs in this sentence can be detected by applying the rule whic

Non numeric literals - cobol program, Non numeric: The nonnumeric lite...

Non numeric: The nonnumeric literal is used in normal to output messages or headings. The Characters which are enclosed between " " constitute nonnumeric literal. The maximum

File updation, FILE UPDATION: The method of modifying an old file with...

FILE UPDATION: The method of modifying an old file with present information is termed as file updating. Master file: A master file is a file which is used as an author

Accept statement, ACCEPT STATEMENT: The ACCEPT statement is used to re...

ACCEPT STATEMENT: The ACCEPT statement is used to read the low-volume data from the operator's console, several other hardware device or from the operating system. The common

Open statement - sequential files, OPEN statement: We know that the pr...

OPEN statement: We know that the processing of a file should start with the execution of an OPEN statement. The file can be opened in any one of the 4 open modes - INPUT, OUTP

File volatility and file interrogation, File volatility: File volatili...

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 re

Illustration of subtract verb, Illustration of Subtract verb: (a) SUBT...

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

Sequential file creation and rewriting, SEQUENTIAL FILE CREATION AND REWRIT...

SEQUENTIAL FILE CREATION AND REWRITING: We have to write a program to create a student file with just two fields: sno i.e. Student Number and same i.e. Student Name. Add a few

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