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File- Section &Working-Storage Section:
a) FILE SECTION:
The FILE SECTION includes the explanation of all data items that must be read from or written onto some external file.
b) WORKING-STORAGE SECTION:
The data items that are developed internally as intermediate result as well as the constants are explained in this section of the DATA DIVISION.
The format of the DATA DIVISION is as shown below:
DATA DIVISION.
[FILE SECTION.
File section entries.
......
......]
[WORKING-STORAGE SECTION.
WORKING-STORAGE ENTRIES.
All the section names as well as the division name should be coded as the margin A entries,
Each section of the DATA DIVISION is optional that means that a section may be omitted if there is no data which may be explained in a specific section. It is important to note that the sections to be included should appear in the order as shown above.
SEQUENTIAL FILES: The purpose of the proposed section is to introduce the concepts such as File characteristics, File Description for Fixed-Length Records, File-Control
Examples - Edit characters for numeric data: The following illustration illustrates the use of Z editing characters. The character b is used to indicate the space character an
DATA RECORD CLAUSE: The DATA RECORD clause, documents the record names defined for the file. For illustration, DATA RECORDS ARE REC-1, REC-2, REC-3 that means there are 3diffe
CLASS CONDITION: The class condition establishes whether or not the value of the operand is numeric or alphabetic. The operand is numeric if it contains only the digits 0 t
COMPOUND CONDITION: The two simple conditions can be connected by the logical operators AND or OR to form a compound condition (also termed as combined condition). When two co
PROGRAM FOR INDEXED SEQUENTIAL FILE CREATION: We have to write a program to create an Indexed Sequential File in a dynamic mode for Student particulars. Suppose just 3 fields:
OCCURS CLAUSE - PROGRAM: We have to write a program to elaborate occurs clause. Get names and marks of the students and show them on the screen. identification division.
Illustration of the abbreviation: A few illustration of the abbreviation are given below: Illustration: The compound condition AMOUNT GREATER THAN 499 AND AMOUNT L
DIVIDE VERB: The aim of the DIVIDE verb is to divide one number by the other and to store the result. There are few forms of this verb. One of its forms is as shown below:
PROGRAM FOR SIMPLE PERFORM: We have to write a program to elaborate simple PERFORM statement Identification division. Program- id. Perf1. Environment division. Da
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